ARADUR 90

ARADUR 90 is a 100%-active polymercaptan, or polythiol, epoxy curing agent developed for exceptionally rapid ambient-temperature cure, very short working time, strong cohesion and adhesion, and relatively good flexibility. ARADUR 90 differs fundamentally from polyamine, polyamidoamine and cycloaliphatic-amine hardeners because its reactive functionality is based on thiol groups rather than amine hydrogens. Published selector data describe ARADUR 90 with approximately 10,000-16,000 mPa·s viscosity at 25°C, an active-hydrogen equivalent weight of approximately 200 g/eq, an approximately 4-5 minute gel time with ARALDITE GY 250 using a 20 g mixture at 23°C and Gardner color ≤3. The grade is benzyl-alcohol-free and is especially suited to solvent-free adhesives, mastics, repair mortars, rapid-repair construction systems, selected coatings, industrial maintenance and assembly applications where very fast strength development and rapid return to service are required.

PRODUCT IDENTITY

Product name: ARADUR 90
Product type: Epoxy curing agent / hardener
Chemical family: Polymercaptan / polythiol
Chemical type: Polymercaptan formulation
Reactive functionality: Thiol / sulfhydryl groups
Physical form: Liquid
Active content: Approximately 100% active / solvent-free commercial hardener
Viscosity at 25°C: Approximately 10,000-16,000 mPa·s
Amine value: Not applicable because ARADUR 90 is a polythiol hardener rather than an amine hardener
Active hydrogen equivalent weight: Approximately 200 g/eq
Reference gel time: Approximately 4-5 minutes with ARALDITE GY 250 using a 20 g mixture at 23°C
Color: Gardner ≤3
Benzyl alcohol status: Benzyl-alcohol-free
Reactivity: Very high
Pot-life character: Very short
Primary cure mode: Rapid ambient-temperature thiol-epoxy addition
Flexibility: Relatively good compared with many rigid fast-cure epoxy systems
Heat resistance: Limited compared with higher-Tg cycloaliphatic or aromatic amine-cured systems
Primary documented application sectors: Civil engineering, industrial maintenance and automotive
Primary documented end uses: Solvent-free construction adhesives, mastics, repair mortars and fast-curing epoxy systems
Additional documented adhesive uses: Vehicle assembly, battery cover sealing, battery assembly, cable sealing, motor and magnet bonding, potting and encapsulation, household-appliance assembly, sporting goods, aerospace, marine, rail, recreational vehicles, trucks, leisure equipment and wind-energy assembly
Reference resin compatibility: ARALDITE GY 250 and compatible liquid epoxy resins, including suitably formulated bisphenol A- and bisphenol F-based systems
Typical compatible substrates: Concrete, stone, metal, wood, composites and other substrates where the complete adhesive or coating formulation has been validated
Shelf life: At least approximately one year under the specified original sealed-container storage conditions
Density: Use the current product-specific TDS or SDS; no sufficiently reliable exact current public value was verified for this profile
Flash point: Use the current product-specific SDS; no sufficiently reliable exact current public value was verified for this profile
Storage: Keep in the original tightly closed container under dry controlled conditions and protect from excessive heat, prolonged air exposure and incompatible reactive materials
CAS Number: Proprietary polymercaptan formulation; no single universal CAS number should be assigned to the complete trade grade without current SDS confirmation
EC Number: Proprietary commercial formulation; no single universal EC number should be assigned without current product-specific documentation
Molecular Formula: Not applicable to the complete commercial formulation
Molecular Weight: Variable / not applicable as one fixed value

Synonyms: ARADUR 90, Polymercaptan Epoxy Hardener, Polythiol Epoxy Hardener, Polymercaptan Curing Agent, Polythiol Curing Agent, Fast-Cure Epoxy Hardener, Rapid-Cure Epoxy Hardener, Thiol Epoxy Hardener, Sulfhydryl Epoxy Hardener, Construction Adhesive Hardener, Repair-Mortar Hardener, Mastic Epoxy Hardener, Fast-Assembly Epoxy Hardener, Ambient-Cure Epoxy Hardener, Solvent-Free Adhesive Hardener, Rapid-Repair Epoxy Hardener

ARADUR 90 should be treated as a proprietary formulated polymercaptan curing agent rather than as one pure low-molecular-weight thiol. Its technical identity is best defined by physical form, viscosity, active-hydrogen equivalent weight, gel time, color, cure mechanism and application behavior. Formal component identity, concentration ranges, hazard classification and transport status should be taken from the current product-specific SDS.

WHAT IS ARADUR 90?

ARADUR 90 is an unusually fast epoxy curing agent based on polymercaptan, also called polythiol, chemistry.
The grade is designed for situations in which an epoxy adhesive, mortar, mastic or coating must cure far more quickly than a conventional ambient-cure amine system.
Its approximately 4-5 minute reference gel time makes ARADUR 90 one of the fastest-curing products in the ambient-cure selector range.
The hardener is supplied as a high-viscosity liquid and is approximately 100% active, allowing solvent-free formulation.
ARADUR 90 also provides good cohesion, substrate adhesion and useful flexibility, which is important because many very fast thermoset systems can become excessively brittle.
The tradeoff for very rapid ambient cure is limited working time and more limited heat resistance than some higher-temperature amine-cured epoxy networks.

POLYMERCAPTAN AND POLYTHIOL CHEMISTRY

Polymercaptans are multifunctional sulfur-containing organic materials carrying more than one reactive thiol, or sulfhydryl, group.
The thiol group is written chemically as -SH and provides the active hydrogen that participates in epoxy curing.
When appropriately catalyzed, thiol groups react rapidly with epoxy rings and become incorporated into the final crosslinked network.
The resulting polymer contains thioether-related linkages and hydroxyl groups formed during epoxy-ring opening.
Because the commercial hardener is a proprietary formulation, the exact polymer backbone, thiol functionality distribution and catalytic package should not be invented from generic polythiol chemistry.
The most reliable formulation parameters are the product-specific active-hydrogen equivalent weight, viscosity, gel time and validated resin mix guidance.

HOW THIOL-EPOXY CURING WORKS

Thiol-epoxy curing proceeds through nucleophilic addition to the epoxy ring.
Under basic or catalytic conditions, thiol functionality becomes highly reactive toward the electrophilic carbon atoms of the oxirane group.
The reaction opens the epoxy ring and forms a beta-hydroxy thioether-type linkage in the growing network.
Because ARADUR 90 contains multiple reactive thiol groups and epoxy resins contain multiple epoxy groups, repeated reaction creates a three-dimensional thermoset.
This cure can proceed extremely rapidly at ambient temperature and does not require the same reaction pathway as an amine-epoxy system.
The fast thiol-epoxy mechanism explains why ARADUR 90 is useful when very short fixture time, rapid handling strength or rapid return to service is more important than long open time.

NOT AN AMINE HARDENER

ARADUR 90 is not a polyamine, polyamidoamine or cycloaliphatic-amine hardener.
Accordingly, an amine value should not be assigned to the product.
Its reactive-equivalent specification is based on active hydrogen associated with thiol functionality rather than amine hydrogen.
Using an amine-value calculation or an AHEW borrowed from an amine grade would create a serious formulation error.
The product also does not share every surface-cure behavior associated with ordinary amine hardeners.
ARADUR 90 should therefore be formulated and specified as a polythiol curing agent in its own right.

VERY HIGH REACTIVITY

Very high reactivity is the defining characteristic of ARADUR 90.
The approximately 4-5 minute reference gel time demonstrates a cure rate far faster than most general-purpose ambient epoxy hardeners.
Rapid reaction allows bonded parts or repair areas to develop integrity quickly.
The same reactivity means measuring, mixing and applying the material must be organized before the components are combined.
Delays of only a few minutes can move the formulation from useful low-viscosity application behavior toward gelation.
ARADUR 90 is therefore most effective in workflows specifically designed around fast cure.

VISCOSITY

ARADUR 90 has a published viscosity of approximately 10,000-16,000 mPa·s at 25°C.
This is substantially higher than the viscosity of many ordinary liquid polyamine hardeners.
High viscosity can help provide body in mastics and repair materials, but it also increases the mixing demand in unfilled adhesive systems.
The selected epoxy resin can strongly influence the mixed viscosity because many liquid epoxy resins are significantly less viscous than the hardener.
Cold conditions increase viscosity further and can make hand mixing or dispensing more difficult.
Any controlled warming used to improve flow should remain within current product-specific handling guidance because higher temperature also accelerates cure.

ACTIVE HYDROGEN EQUIVALENT WEIGHT

ARADUR 90 has an active-hydrogen equivalent weight of approximately 200 g/eq.
AHEW represents the mass of commercial hardener supplying one equivalent of reactive active hydrogen for epoxy reaction.
For a liquid epoxy resin with EEW 190 g/eq, simple theoretical stoichiometry gives approximately 105.3 parts ARADUR 90 per 100 parts resin.
At resin EEW 185 g/eq, the theoretical value is approximately 108.1 parts, while at EEW 200 g/eq the result is approximately 100 parts.
These values are theoretical starting points only because the exact formulation may contain reactive diluents, modifiers, fillers or a resin blend.
Current resin-specific technical guidance should therefore take precedence over one generic calculated ratio.

GEL TIME

Published selector data give ARADUR 90 a gel time of approximately 4-5 minutes with ARALDITE GY 250 using a 20 g mixture at 23°C.
The 20 g test mass is important because exothermic reaction makes gel time strongly dependent on batch size.
A larger mixed mass can retain more heat and react faster than the small reference batch.
A thin adhesive layer or coating film can dissipate heat and may behave differently from a cup of mixed material.
Gel time should therefore be used as a reactivity indicator rather than as a guaranteed universal field pot life.
The finished formulation should define its own maximum mixing-to-application time at realistic temperature and batch volume.

VERY SHORT POT LIFE

ARADUR 90 has a very short practical pot-life character.
The approximately 4-5 minute reference gel time leaves little margin for slow manual application.
Meter-mix dispensing, premeasured cartridges, small batches or highly organized manual workflows can improve process reliability.
Large batches should be avoided unless the process has been specifically engineered for rapid transfer and heat management.
Material should never be diluted with solvent merely to recover apparent workability after cure has begun.
Once viscosity rise is caused by chemical reaction, the mixture should be considered beyond its validated working period.

100 PERCENT ACTIVE CHARACTER

ARADUR 90 is supplied as an approximately 100%-active liquid hardener.
This allows formulation of solvent-free adhesive and coating systems.
The absence of carrier solvent can support high bond-line solids, low shrinkage from solvent evaporation and rapid development of mechanical properties.
A 100%-active hardener is not automatically equivalent to a zero-emission finished formulation because other raw materials can introduce volatile constituents.
The complete system should therefore be evaluated under the applicable VOC definition where a formal emissions claim is required.
For practical formulation, the important point is that ARADUR 90 itself does not require a volatile solvent carrier to function as the curing component.

BENZYL-ALCOHOL-FREE STATUS

ARADUR 90 is documented as benzyl-alcohol-free.
Benzyl alcohol is used in some epoxy hardener technologies as a viscosity reducer or cure modifier.
A benzyl-alcohol-free hardener can be useful where a formulator wants to avoid migration or performance effects associated with that component.
The complete adhesive or coating should still be reviewed because another ingredient could introduce benzyl alcohol.
Formal restricted-substance declarations should rely on current product-specific documentation rather than the generic chemistry description.

GARDNER COLOR

ARADUR 90 has a published Gardner color limit of approximately 3.
This relatively low color supports lightly colored adhesive, mastic and coating systems.
The final mixed color also depends on the epoxy resin and any pigments, fillers or modifiers.
Fast cure can reduce the time available for visual leveling but does not inherently require a dark cured network.
Long-term exterior color stability remains dependent on the epoxy resin system because conventional epoxy chemistry can yellow under ultraviolet exposure.

RELATIVELY GOOD FLEXIBILITY

Relatively good flexibility is a documented ARADUR 90 feature.
This makes the grade useful where very rapid cure must be combined with some tolerance to deformation, impact or differential movement.
The flexible character is valuable in adhesives joining dissimilar substrates such as metal to composite or metal to polymeric components.
Repair mortars and mastics can also benefit from a less brittle cured binder.
The exact modulus and elongation depend on the epoxy resin, ratio, filler loading and cure conditions.
Highly filled or highly functional resin systems can reduce the flexibility observed in an unfilled reference adhesive.

COHESION

Good cohesion is a key performance feature of ARADUR 90.
Cohesion describes the internal strength of the cured adhesive or binder rather than only the strength of the interface to the substrate.
A fast-curing repair or assembly adhesive must develop enough internal network strength to transfer load without tearing within the bond line.
ARADUR 90 is positioned to provide rapid cohesive strength development at ambient temperature.
Final cohesive strength should be evaluated after the specified cure time because handling strength can develop before full network properties are reached.

ADHESION

Good substrate adhesion is another major ARADUR 90 advantage.
The grade is used in construction and assembly applications where rapid bonding to mineral, metallic and composite surfaces is required.
Concrete and stone should be sound and free from weak dust, laitance, oil and incompatible contamination.
Metal surfaces should be clean and appropriately prepared for the required bond durability.
Wood and composites require substrate-specific preparation because surface chemistry and porosity vary widely.
Fast cure makes immediate wetting especially important because there is little time for the adhesive to redistribute after mixing.

LIMITED HEAT RESISTANCE

Limited heat resistance is a documented ARADUR 90 characteristic.
The rapid polythiol cure mechanism is optimized for ambient reaction speed rather than maximum high-temperature network performance.
For applications requiring sustained high service temperature or very high glass-transition temperature, another hardener chemistry may be more appropriate.
The actual service-temperature limit depends on the selected epoxy resin, ratio, fillers and cure schedule.
A formulation should therefore be tested at the intended continuous and peak service temperatures.
Fast room-temperature cure should not be mistaken for high-temperature structural capability.

LOW-TEMPERATURE REACTIVITY

Polythiol systems are known for maintaining useful reactivity at temperatures where many ordinary amine systems slow dramatically.
ARADUR 90 is therefore technically attractive for rapid field repair and assembly in cooler ambient conditions.
Lower temperature increases viscosity, which can reduce wetting even while the chemistry remains reactive.
The resin and hardener should be conditioned enough to allow complete mixing without exceeding current handling limits.
The actual minimum application temperature should be established on the final formulation rather than inferred from generic polythiol behavior.

SOLVENT-FREE FORMULATION

ARADUR 90 is particularly suited to solvent-free epoxy technology.
Current adhesive information specifically identifies solvent-free construction adhesives, mastics and repair mortars as core uses.
Solvent-free coating selector information also places ARADUR 90 in solvent-free and high-solids epoxy applications.
The absence of carrier solvent helps the system develop bond-line thickness or film build without shrinkage caused by solvent evaporation.
High solids can also support rapid return to service because cure is driven by reaction rather than solvent loss.
Viscosity control must come from resin selection, reactive diluent, filler architecture or processing temperature rather than conventional volatile thinner.

APPLICATIONS

Solvent-free construction adhesives
Solvent-free construction adhesive is one of the clearest documented ARADUR 90 applications. Very rapid ambient cure can provide fast fixture and early handling strength.

Rapid-set construction adhesives
ARADUR 90 is particularly suited to bond lines that must develop integrity within minutes rather than hours.

Concrete bonding
Prepared concrete can be bonded using compatible rapid-cure epoxy adhesives where the short application window can be managed.

Stone bonding
Construction stone and mineral materials can use fast-curing adhesive systems after the bonding surfaces are cleaned and prepared.

Metal bonding
Prepared steel, aluminum and other compatible metals can be bonded where rapid strength development is required.

Composite bonding
Composite parts can use ARADUR 90 adhesive systems where the surface treatment and bond-line flexibility are appropriate.

Wood bonding
Selected wood assemblies can use fast-curing epoxy where moisture content and surface condition are suitable.

Mastics
Mastics are a primary documented use. The naturally high hardener viscosity and filled-system capability support rapid-set paste formulations.

Repair mastics
Fast repair mastics can fill gaps, rebuild edges or bond components where long cure times would delay service.

Repair mortars
Repair mortar is a primary documented civil-engineering use. Mineral aggregate can be incorporated to produce rapidly hardening epoxy repairs.

Rapid concrete repair
Small concrete repairs can use ARADUR 90 systems where early strength and short closure time are important.

Industrial floor repair
Localized floor defects can be repaired rapidly with filled epoxy systems that cure on a much shorter schedule than conventional ambient hardeners.

Edge repair compounds
Damaged floor edges, corners and non-moving details can use rapid-set filled systems.

Patch compounds
Fast epoxy patching products can use ARADUR 90 where the area must return to service quickly.

Epoxy grouts
Small-volume rapid-set grouts can be developed where short placement time is acceptable and exotherm is controlled.

Anchoring adhesives
Fast-set anchoring formulations can use polythiol cure where the installation sequence allows the short working time.

Dowel bonding
Rapid construction bonding can be used for selected dowel or insert applications after bond-strength validation.

Assembly adhesives
ARADUR 90 is suitable for rapid two-component assembly adhesives where fixture time is a key productivity constraint.

Automotive assembly
Automotive assembly is among the documented application areas for ARADUR 90 adhesive technology.

Exterior vehicle assembly
Selected exterior vehicle components can use rapid-cure adhesive systems where durability and environmental exposure have been validated.

Interior vehicle assembly
Interior components can use quick-setting epoxy where the assembly process benefits from early handling strength.

Battery cover sealing
Battery cover sealing is a documented adhesive application category. The full formulation must be qualified for the electrical, thermal and chemical 
environment.

Battery assembly
Fast-curing epoxy can be used in selected battery-assembly operations where process speed and bonding reliability are required.

Cable sealing
Cable-sealing compounds can use rapid polythiol cure where the short work time is compatible with dispensing and filling.

Motor bonding
Motor components can use ARADUR 90 adhesives where rapid fixture and good cohesion are important.

Magnet bonding
Motor and magnet bonding is a documented use area. Adhesive gap, substrate preparation and operating temperature should be validated.

Potting and encapsulation
Potting and encapsulation are documented application categories. Small volumes can cure rapidly, but exotherm must be controlled carefully.

Electronic assembly
Selected electronic assemblies can use rapid-cure epoxy where electrical and thermal properties have been qualified.

Thermally conductive adhesives
Filled adhesive formulations can incorporate thermally conductive particles where rapid cure and dispensing can be balanced.

Electrically conductive adhesives
Conductive fillers can be formulated into rapid-cure epoxy where the required electrical performance and bond durability are validated.

Household-appliance assembly
Appliance components can use fast-curing adhesives to reduce clamping or handling time during production.

Sporting-goods assembly
Sporting-goods components are included among documented ARADUR 90 adhesive application areas.

Marine assembly
Marine bonding is a documented application category, although continuous water exposure and long-term durability must be tested on the complete adhesive.

Rail assembly
Rail applications can use fast-cure adhesives where vibration, fire-performance and environmental requirements are satisfied by the complete system.

Recreational-vehicle assembly
Rapid epoxy bonding can support selected recreational-vehicle construction and repair tasks.

Truck assembly
Truck and commercial-vehicle components can use fast-set adhesives where process and service requirements are met.

Aerospace assembly
Aircraft and aerospace assembly are documented application categories, but any structural aerospace use requires system-specific qualification and should not be inferred from raw-material suitability alone.

Wind-energy assembly
Wind-energy bonding and repair can use fast-cure epoxy in selected localized applications where working time and service requirements are compatible.

Industrial maintenance adhesives
Industrial maintenance is a documented sector. ARADUR 90 can reduce downtime for bonded repairs.

Emergency repair systems
The very short cure time makes the grade useful for emergency or time-critical repair formulations.

Fast-curing floor coatings
ARADUR 90 can be used in selected solvent-free floor coatings where rapid through-cure and return-to-service speed are more important than long working time.

Concrete primers
Low-viscosity resin combined with ARADUR 90 can be evaluated for rapid-cure concrete primer systems, although the short pot life requires careful application logistics.

Protective coatings
Solvent-free protective coatings can use ARADUR 90 where rapid cure and good adhesion are required.

High-solids coatings
The 100%-active hardener can support high-solids epoxy coating technology.

Rapid-cure industrial coatings
Industrial maintenance surfaces can use fast-curing epoxy systems where short shutdown time is important.

Spot-repair coatings
Small localized coating repairs are especially compatible with a short working window because the application area is limited.

Sealing compounds
Filled sealing formulations can use ARADUR 90 where a rigid-to-semi-flexible rapid set is acceptable.

Gap-filling adhesives
The high-viscosity hardener can contribute body in gap-filling adhesive formulations.

Fast-setting composite repairs
Small composite repair areas can use rapid epoxy cure where reinforcement wetting can be completed before the system advances too far.

General rapid-cure epoxy systems
Other applications are possible where extremely short open time, ambient cure, adhesion and relatively good flexibility match the manufacturing or repair process.

ARALDITE GY 250 REFERENCE SYSTEM

ARALDITE GY 250 is the reference epoxy resin used in the published ARADUR 90 selector gel-time measurement.
The 20 g mixture at 23°C gels in approximately 4-5 minutes.
This reference is useful for comparing reactivity with other ambient hardeners.
It should not be interpreted as a universal production ratio or pot-life specification for every resin.
ARADUR 90 can also be used with other compatible liquid epoxy resins where the total EEW and formulation design are known.
The exact ratio should be calculated from resin EEW and validated through cure, adhesion and mechanical testing.

BISPHENOL A EPOXY RESINS

ARADUR 90 can be formulated with compatible bisphenol A-based liquid epoxy resins.
Standard liquid epoxy provides strong adhesion and good general mechanical properties.
The high viscosity of the hardener can be partially balanced by selecting a lower-viscosity resin grade.
Reactive diluent can further adjust processing viscosity, but it changes the effective EEW and therefore the stoichiometric hardener demand.
The final adhesive should be tested for heat resistance because the rapid polythiol cure system has more limited thermal performance than some rigid amine systems.

BISPHENOL F EPOXY RESINS

Compatible bisphenol F-based liquid epoxy resins can also be used in suitably developed ARADUR 90 systems.
Bisphenol F resin generally offers lower viscosity than a comparable standard bisphenol A epoxy and can improve processability in solvent-free fast-cure formulations.
The exact EEW should be used to calculate the starting hardener ratio.
Resin selection also changes cured modulus, heat resistance and chemical resistance.
A lower-viscosity resin can be particularly useful where dispensing speed is important because the ARADUR 90 hardener itself is relatively viscous.

THEORETICAL MIX-RATIO CALCULATION

Theoretical hardener demand can be estimated from ARADUR 90 AHEW and resin EEW.
The equation is parts ARADUR 90 per 100 parts resin = 100 × 200 / resin EEW.
At resin EEW 170 g/eq, the theoretical value is approximately 117.6 parts hardener.
At EEW 180 g/eq, the value is approximately 111.1 parts.
At EEW 185 g/eq, the value is approximately 108.1 parts.
At EEW 190 g/eq, the value is approximately 105.3 parts.
At EEW 200 g/eq, the theoretical value is approximately 100 parts.
The calculation is only a starting point; current resin-specific formulation data should control the actual production ratio.

EFFECT OF MIX RATIO

Incorrect resin-to-hardener ratio can reduce the performance of a polythiol epoxy system just as it can in an amine-cured system.
Too little ARADUR 90 can leave excessive unreacted epoxy functionality and reduce cure completeness.
Too much hardener can leave residual thiol-related functionality or unbalanced network structure.
Off-ratio formulation can affect hardness, flexibility, chemical resistance, odor and long-term durability.
Accurate dispensing is especially important because the material gels so quickly that correcting a mixing error after combination is impractical.
Premeasured packs or calibrated meter-mix equipment are therefore highly useful.

MIXING

ARADUR 90 should be mixed thoroughly with the selected epoxy resin before application.
The high hardener viscosity can create streaks or unmixed zones if hand mixing is too brief.
The bottom and walls of the mixing container should be incorporated fully into the blend.
High-speed mixing should be used cautiously because air entrapment and frictional heating can reduce application quality.
Small batches are usually easier to homogenize and apply within the available time.
For cartridge or meter-mix systems, the static mixer should be selected to provide complete mixing at the intended flow rate.

CARTRIDGE AND METER-MIX PROCESSING

The very short pot life of ARADUR 90 makes two-component cartridge and meter-mix dispensing particularly attractive.
The resin and hardener remain separate until the moment of application, avoiding loss of bulk pot life in a mixing vessel.
A static mixer can combine the components continuously as the adhesive is dispensed.
Cartridge ratio must match the validated formulation ratio rather than an assumed 1:1 proportion unless the complete system is specifically designed that way.
High hardener viscosity affects dispensing pressure and static-mixer selection.
Start-up and shutdown procedures should minimize partially reacted material inside the mixer.

EXOTHERM CONTROL

ARADUR 90 cure is exothermic and exceptionally fast.
Large mixed masses can accumulate heat rapidly and can gel sooner than the 20 g reference mixture.
High internal temperature can accelerate reaction further and create a positive-feedback effect.
Small batch size is therefore one of the most important process controls.
Mineral-filled repair mortars dissipate and absorb some heat but should still be tested for thick-section temperature rise.
Unused mixed material should not be left in a deep sealed container.

TEMPERATURE EFFECTS

Temperature strongly affects both viscosity and reaction speed.
Cold ARADUR 90 becomes more viscous and can be harder to meter or mix.
Warm material flows more easily but reacts even faster after resin addition.
A modest increase in component temperature can therefore reduce viscosity while simultaneously shortening already-limited working time.
Components and substrates should be conditioned within the validated process range before mixing.
Direct uncontrolled heating or open-flame warming should never be used.

REPAIR MORTARS

Repair mortar is a core ARADUR 90 application.
Silica, quartz and graded mineral aggregate can be incorporated into the resin-hardener binder to build compressive strength and reduce shrinkage.
All aggregate and tools should be prepared before the reactive components are mixed because the application time is extremely short.
Preblended filler packs can improve field consistency and shorten mixing time.
Small patch volumes are particularly suitable for this chemistry.
Large-area mortar placement should use staged small batches or another cure system with a longer working window.

MASTICS

Mastics are another primary ARADUR 90 use.
A mastic requires high body, gap-filling ability and enough thixotropy to remain in place on non-horizontal surfaces.
The relatively high viscosity of ARADUR 90 can contribute to this body.
Mineral fillers and thixotropes can further adjust sag resistance.
The formulation should still wet the substrate before cure advances.
Too much filler can reduce adhesion or make mixing within the short work time difficult.

RAPID ADHESIVE ASSEMBLY

ARADUR 90 is highly suited to assembly processes in which clamping or fixture time must be minimized.
Rapid gelation can allow parts to move to the next manufacturing step sooner than with conventional ambient epoxy.
The joining process must be designed so the adhesive is dispensed, parts are aligned and pressure is applied within the short open time.
Complex large assemblies may require automated meter-mix equipment.
For small parts, cartridges or dual-syringe systems can provide repeatable dosing and immediate mixing.
Final load should be applied only after the adhesive reaches the validated handling and service strength.

POTTING AND ENCAPSULATION

Potting and encapsulation are documented ARADUR 90 adhesive application categories.
Rapid cure can be useful where a small electronic or mechanical assembly must be sealed quickly.
The chemistry should be used cautiously in large potting volumes because exotherm can rise rapidly.
High-viscosity formulations can also trap air around components.
Vacuum deaeration may be difficult because the pot life is short, so low-air mixing and controlled dispensing are important.
Electrical, thermal, shrinkage and service-temperature properties should be validated on the complete potting formulation.

MOTOR AND MAGNET BONDING

Motor and magnet bonding are documented application areas.
Rapid cure can reduce fixture time in high-throughput assembly.
The limited heat resistance of the polythiol network must be considered carefully because motor components can operate at elevated temperature.
The exact adhesive should therefore be qualified for continuous operating temperature, peak temperature and vibration.
Bond-line thickness and magnetic-component surface treatment can strongly influence final strength.

BATTERY ASSEMBLY

Battery cover sealing and battery assembly are documented application categories for ARADUR 90.
Fast cure can support production speed and early sealing integrity.
The complete adhesive must be tested for electrolyte or process-chemical exposure, electrical properties, thermal cycling and dimensional movement.
The raw hardener's application listing does not by itself establish suitability for every battery chemistry or cell design.
Automated two-component dispensing is especially useful because it minimizes bulk mixed residence time.

CONSTRUCTION SUBSTRATES

ARADUR 90 systems can bond concrete, stone and other construction materials when surfaces are sound and properly prepared.
Concrete should be free from weak laitance, dust, oil, curing compounds and loose material.
Stone surfaces should be clean and mechanically stable.
Very porous substrates can absorb low-viscosity resin phase and should be evaluated for bond-line starvation.
Moist or wet-substrate performance should not be assumed unless the specific adhesive formulation has been qualified for that condition.
Rapid cure cannot compensate for a weak or contaminated interface.

METAL SUBSTRATES

Metal surfaces can be bonded with ARADUR 90 systems where rapid assembly and good adhesion are needed.
Oil, oxide, salts and release agents should be removed before bonding.
Abrasive preparation can increase surface area and mechanical interlocking where appropriate.
Some metals benefit from chemical pretreatment or primer for long-term durability.
The flexible character of the cured system can reduce stress concentration caused by differential thermal expansion.
Heat resistance remains a separate design limit and should be checked for the intended service temperature.

COMPOSITE SUBSTRATES

Composite bonding is a documented application category.
Bond durability depends on the composite matrix, peel-ply history, release-agent contamination and surface preparation.
Abrasion or approved surface treatment can improve adhesion.
The relatively good flexibility of ARADUR 90 can be useful when composite and metal components have different stiffness.
The very short open time requires rapid placement and alignment of larger bonded assemblies.
Structural composite bonding should be validated through representative mechanical and environmental testing.

FILLERS

Mineral and functional fillers can be used to adjust viscosity, shrinkage, thermal behavior, conductivity and mechanical properties.
Silica and quartz are common in repair mortars and mastics.
Metallic or ceramic fillers can be used where thermal conductivity or wear resistance is required.
Conductive fillers can be incorporated into selected electrical or thermal adhesive formulations.
High filler loading can make rapid mixing difficult because ARADUR 90 is already viscous.
All dry fillers should be prepared before mixing to avoid wasting the short working period.

RHEOLOGY CONTROL

ARADUR 90 begins with relatively high viscosity, but the final rheology depends on the selected epoxy resin and filler package.
Mastics and vertical repairs need strong anti-sag structure.
Adhesive films may require lower viscosity for complete substrate wetting.
Fumed silica, mineral filler and compatible polymeric rheology modifiers can be evaluated.
Excessive thixotropy can slow mixing and reduce wetting within the already short open time.
Rheology should therefore be optimized together with dispensing and application method.

AIR ENTRAPMENT

High viscosity and rapid cure can trap air introduced during mixing.
Bubbles can reduce cohesive strength, create visible voids and interfere with potting or sealing performance.
Manual mixing should minimize whipping action.
Static mixers should provide complete combination without excessive pressure drop or air inclusion.
Filled repair mortars should be compacted quickly before cure advances.
Because there is little time for bubbles to rise naturally, process design is more important than relying on passive deaeration.

CHEMICAL RESISTANCE

ARADUR 90 is selected primarily for cure speed and adhesion rather than for maximum high-temperature chemical resistance.
The final chemical-resistance profile depends strongly on the epoxy resin and crosslink balance.
Oils, cleaners, water and selected industrial chemicals may be tolerated by properly formulated systems.
Aggressive solvents, strong acids, oxidizing chemicals and hot immersion require direct testing.
The limited heat resistance of the polythiol-cured network can become more important when chemical exposure occurs at elevated temperature.
Service-specific qualification should therefore replace generic resistance assumptions.

WATER RESISTANCE

Water performance depends on the complete epoxy formulation and cure completeness.
Rapid gel does not mean immediate full water resistance.
The network should be allowed to develop the specified cure before continuous wet service unless the system has been specifically qualified for early exposure.
Marine, battery and construction applications should test adhesion after water or humidity exposure where relevant.
A benzyl-alcohol-free hardener can simplify some formulation concerns, but water resistance still depends on all resin and additive components.

HEAT PERFORMANCE

ARADUR 90 has limited heat resistance relative to many higher-Tg amine hardeners.
This is an important design constraint in motors, electronics, automotive assemblies and other applications that can run hot.
The resin can influence final heat resistance, but the curing-agent structure remains a major part of the network.
Continuous service temperature, short peak temperature and thermal cycling should be evaluated separately.
Where high heat resistance is essential, a different hardener chemistry may provide a better balance even if cure is slower.

QUALITY CONTROL

Important ARADUR 90 quality-control parameters include physical appearance, viscosity, active-hydrogen equivalent weight, Gardner color and functional gel behavior.
Published viscosity is approximately 10,000-16,000 mPa·s at 25°C.
Published AHEW is approximately 200 g/eq and Gardner color approximately ≤3.
The reference gel-time test is approximately 4-5 minutes with ARALDITE GY 250 using a 20 g mixture at 23°C.
Amine value should not appear as an acceptance parameter because ARADUR 90 is not an amine hardener.
Batch-specific COA values and current product-specific documentation should take precedence for incoming acceptance.

WHY VISCOSITY MATTERS

The 10,000-16,000 mPa·s viscosity affects dispensing pressure, mixing efficiency and substrate wetting.
Unexpectedly high viscosity can indicate low temperature, aging or contamination.
Unexpectedly low viscosity can indicate dilution, excessive temperature or incorrect material.
Viscosity should be compared at 25°C when using the published range.
The mixed-system viscosity may differ substantially because the epoxy resin can be lower or higher in viscosity than the hardener.

WHY AHEW MATTERS

The approximately 200 g/eq AHEW determines the theoretical quantity of ARADUR 90 needed for a given epoxy equivalent weight.
A resin around EEW 190 g/eq gives a theoretical hardener demand around 105 phr.
The exact commercial ratio can differ because resin blends and reactive modifiers change equivalent balance.
Using an amine hardener's AHEW or an unrelated polythiol value would create incorrect stoichiometry.
The formulation should therefore use ARADUR 90 product-specific active-equivalent information.

WHY GEL TIME MATTERS

The approximately 4-5 minute reference gel time is the most important process warning associated with ARADUR 90.
It means every formulation and application operation must be organized around a very short open period.
The result was obtained using a 20 g reference mass at 23°C, and larger batches can react faster through heat buildup.
Practical application time should therefore be measured directly on the finished adhesive or coating.
A process that needs ten or twenty minutes of manual open time is generally not a natural match for ARADUR 90 without substantial reformulation.

SHELF LIFE

Published product information gives a shelf life of at least approximately one year under the specified original-container storage conditions.
The exact expiry date on the supplied package should control use.
Polythiol formulations should be protected from prolonged air exposure, excessive heat and incompatible oxidizing materials.
Repeated opening can introduce contamination or accelerate oxidation.
Viscosity, color or functional gel behavior should be checked if material has been stored near the end of its approved shelf life.

TDS, SDS AND COA

The current Technical Data Sheet should control present specifications, resin compatibility and validated formulation recommendations.
The Safety Data Sheet governs formal component disclosure, hazards, first aid, fire response, transport, incompatibilities and storage.
The Certificate of Analysis provides batch-specific controlled values where supplied.
Published selector and product data support the polymercaptan identity, 10,000-16,000 mPa·s viscosity, approximately 200 g/eq AHEW, 4-5 minute 20 g reference gel time, Gardner ≤3 and benzyl-alcohol-free status.
Current adhesive information also supports very high reactivity, short pot life, rapid cure, relatively good flexibility, limited heat resistance, good cohesion and good adhesion.
Where current product-specific documents differ from older selector data, current product-specific documentation should take precedence.

SAFETY AND HANDLING

ARADUR 90 is a reactive sulfur-containing curing agent and should be handled according to the current product-specific SDS.
Direct skin and eye contact should be avoided.
Chemical-resistant gloves, suitable eye protection and protective clothing should be selected through workplace risk assessment.
The material can have a characteristic mercaptan or sulfur-type odor, so adequate ventilation is important.
Spraying, heating or poorly ventilated use can increase airborne exposure and may require additional respiratory controls according to the SDS.
The rapid exothermic reaction with epoxy resin creates a process hazard in large mixed batches and should be considered separately from normal raw-material handling.

FIRST AID

After skin contact, contaminated skin should be washed promptly according to current SDS guidance and contaminated clothing should be removed.
If product enters the eyes, immediate prolonged rinsing with clean water should begin and medical attention should be obtained according to the SDS.
If vapor, aerosol or strong odor exposure causes symptoms, move the affected person to fresh air and obtain appropriate medical advice.
After accidental ingestion, follow the current product-specific SDS and professional medical guidance.
Generic treatment advice should not replace the instructions supplied for the exact commercial formulation.

SPILL MANAGEMENT

Spilled ARADUR 90 is a viscous liquid and should be contained promptly.
Personnel should use suitable PPE and prevent the material from entering drains, soil or surface water.
Compatible absorbent can be used for smaller spills, while larger releases may require mechanical recovery.
Recovered material and contaminated absorbent should be placed in appropriate labeled containers.
Strong oxidizing materials should not be used casually during cleanup because thiol chemistry can react strongly with oxidants.
Current SDS and local waste requirements should control disposal.

FIRE RESPONSE

ARADUR 90 is an organic sulfur-containing formulation and can burn or decompose under severe heating.
No unverified flash point is assigned in this authority page.
Thermal decomposition or fire can generate carbon oxides and sulfur-containing fumes.
Firefighters may require self-contained breathing apparatus and suitable protective clothing.
Extinguishing media and emergency procedures should follow the current product-specific SDS and facility fire plan.
Mixed resin-hardener material can also generate heat rapidly through cure even when there is no external flame.

STORAGE

ARADUR 90 should be kept in its original tightly closed container under dry controlled storage conditions.
Excessive heat, direct sunlight and prolonged air exposure should be avoided.
The hardener should be segregated from strongly oxidizing materials and other incompatible reactive chemicals identified in the current SDS.
Containers should be closed immediately after use to minimize odor release, contamination and oxidation.
The current product-specific storage temperature and original-package expiry information should govern shelf-life decisions.

REGULATORY CONSIDERATIONS

ARADUR 90 is a proprietary polymercaptan curing-agent formulation.
Benzyl-alcohol-free status is documented, but the finished formulation must be reviewed independently for its complete restricted-substance and VOC profile.
Generic suitability for automotive, marine, aerospace, electronics or construction applications does not establish certification for any regulated end use.
Medical-device, aerospace, transportation and electrical applications require qualification of the complete adhesive or coating system to the applicable specification.
No food-contact, potable-water or medical-use approval should be inferred solely from the raw-material application list.
Formal compliance statements should rely on current product-specific and finished-system documentation.

ENVIRONMENTAL CONSIDERATIONS

Uncured ARADUR 90 should not be discharged directly to drains, soil or natural waterways.
The 100%-active character can reduce conventional solvent emissions in properly designed solvent-free formulations.
Cleaning waste can contain resin, hardener, fillers and cleaning media and should be managed appropriately.
Large quantities of mixed resin and hardener can generate significant exothermic heat and should not be accumulated in uncontrolled waste containers.
Fully cured epoxy has different mobility and reactivity from uncured raw material, but disposal requirements remain jurisdiction specific.
The complete lifecycle impact depends on application, formulation, waste generation and service durability rather than the hardener alone.

COMMON FORMULATION PROBLEMS

Mixture gels before application is complete
ARADUR 90 has an approximately 4-5 minute reference gel time. Reduce batch size, organize the operation before mixing or use meter-mix dispensing.

Pot life is shorter than the published value
Larger batch mass or warmer components can accelerate the exothermic reaction. Compare actual batch size and temperature with the 20 g, 23°C reference condition.

Mixture is too viscous
Cold temperature, high filler loading or a high-viscosity resin can make the system difficult to dispense. Condition materials within approved limits or 
select a lower-viscosity compatible resin.

Static mixer pressure is too high
ARADUR 90 is highly viscous. Review component temperature, cartridge geometry, mixer diameter and resin viscosity.

Incomplete mixing
High viscosity and short pot life can leave streaks or unmixed zones. Improve mixer design and reduce batch size.

Air bubbles remain in the adhesive
Fast cure gives bubbles little time to escape. Minimize air during mixing and use an appropriate dispensing process.

Repair mortar hardens in the bucket
Batch volume is too large or placement is too slow. Premeasure aggregate and mix only the amount that can be installed immediately.

Mastic is too stiff
Excessive filler or low temperature can make application difficult. Optimize filler loading and processing temperature before changing the cure ratio.

Mastic sags
The resin component may be too low in viscosity or rheology may be insufficient. Add compatible thixotropy without compromising wetting.

Adhesive bond is weak
Surface contamination, poor mixing, wrong ratio or late application can reduce adhesion. Correct process and substrate preparation first.

Concrete bond fails at the interface
Dust, weak laitance, oil or curing compound can create a weak boundary layer. Mechanically prepare and clean the surface.

Metal bond fails
Oil, oxide, salts or inadequate roughness can reduce adhesion. Improve metal surface preparation.

Bond line becomes brittle
Rigid resin, excessive mineral filler or incorrect ratio can suppress the relatively good flexibility of ARADUR 90. Rebalance the formulation.

Bond line is too soft
Off-ratio cure, incompatible resin or insufficient final cure can reduce modulus. Verify equivalent balance and cure time.

Heat resistance is inadequate
ARADUR 90 has limited heat resistance relative to higher-Tg amine systems. Select a more heat-resistant curing chemistry if service temperature requires it.

Motor or electronics adhesive softens in service
Operating temperature may exceed the suitable range of the polythiol-cured network. Perform thermal qualification on the complete system.

Potting mass becomes excessively hot
The cure is strongly exothermic and fast. Reduce casting mass, adjust geometry or choose a slower system for large potting volumes.

Coating loses flow almost immediately
ARADUR 90 is unusually reactive. Use small batches, rapid application and a formulation designed specifically for short open time.

Poor chemical resistance
The selected resin, cure ratio or service temperature may be unsuitable. Allow full cure and test the actual chemical environment.

Early water exposure causes property loss
Gelation is not equivalent to final cure. Delay severe water exposure until the specified network properties have developed.

Strong sulfur odor during processing
Mercaptan chemistry can have a characteristic odor. Improve ventilation and follow the current SDS exposure controls.

Color darkens during storage
Prolonged air, heat or oxidative exposure can alter thiol-containing formulations. Keep the container sealed and follow approved storage conditions.

Premature thickening in storage
Contamination, oxidation or incompatible material contact can promote unwanted reaction. Keep the hardener isolated and sealed.

Incorrect amine value entered in specification
ARADUR 90 is not an amine hardener. Amine value is not applicable; use AHEW, viscosity, color and functional gel behavior.

Mix ratio copied from another ARADUR hardener
ARADUR 90 has AHEW around 200 g/eq and uses thiol chemistry. Calculate the ratio from the actual resin EEW or use validated resin-specific guidance.

1:1 packaging assumed to be universally correct
Some formulated commercial adhesive systems may use 1:1 packaging, but neat resin/hardener stoichiometry depends on resin EEW and full formulation. Do not 
assume one universal volumetric ratio.

Working time is too short for large-area flooring
The chemistry may be too reactive for the intended application size. Use staged small batches or a slower hardener system.

Adhesive cures before parts are aligned
Assembly sequence is too slow for the available open time. Use fixtures, automated dispensing or a slower formulation.

Outdoor yellowing occurs
Conventional epoxy resin can yellow under ultraviolet exposure. Use a suitable exterior finish when long-term appearance matters.

Regulated-use claim inferred from application listing
Raw-material use in automotive, aerospace, marine or medical-device assembly does not itself establish certification. Qualify the complete system to the 
applicable standard.

FREQUENTLY ASKED QUESTIONS

What is ARADUR 90?
ARADUR 90 is a very fast-curing polymercaptan, or polythiol, epoxy curing agent.

Is ARADUR 90 an amine hardener?
No. ARADUR 90 is a polythiol hardener and should not be assigned an amine value.

What is the viscosity?
Approximately 10,000-16,000 mPa·s at 25°C.

What is the active hydrogen equivalent weight?
Approximately 200 g/eq.

What is the reference gel time?
Approximately 4-5 minutes with ARALDITE GY 250 using a 20 g mixture at 23°C.

What is the Gardner color?
Approximately ≤3.

Is ARADUR 90 benzyl-alcohol-free?
Yes. Benzyl-alcohol-free status is documented.

Is ARADUR 90 solvent free?
The commercial hardener is supplied as an approximately 100%-active liquid and supports solvent-free formulation.

What are the main documented applications?
Solvent-free construction adhesives, mastics, repair mortars, rapid-cure coatings, industrial maintenance and assembly adhesives are important uses.

Can ARADUR 90 be used for repair mortar?
Yes. Repair mortar is one of the core documented civil-engineering applications.

Can ARADUR 90 be used for mastics?
Yes. Mastics are a core documented application.

Can ARADUR 90 be used for construction adhesives?
Yes. Solvent-free construction adhesives are one of the principal applications.

Can ARADUR 90 be used for automotive assembly?
Yes. Automotive assembly and related bonding applications are documented, subject to qualification of the complete adhesive system.

Can ARADUR 90 be used for potting and encapsulation?
Yes. Potting and encapsulation are documented application categories, but exotherm and heat resistance must be considered.

Can ARADUR 90 be used for motor and magnet bonding?
Yes. Motor and magnet bonding are documented uses, but service-temperature qualification is important because heat resistance is limited.

Can ARADUR 90 be used for marine bonding?
Yes. Marine adhesive use is documented, but water exposure and durability must be validated for the complete formulation.

Can ARADUR 90 be used with ARALDITE GY 250?
Yes. ARALDITE GY 250 is the reference resin used in the published gel-time test.

Can ARADUR 90 be used with other liquid epoxy resins?
Yes. Compatible bisphenol A- and bisphenol F-based liquid epoxy resins can be formulated when the resin EEW and required ratio are known.

What is the theoretical hardener level with a resin EEW of 190?
Approximately 105.3 parts ARADUR 90 per 100 parts resin based on AHEW 200 g/eq.

Is that ratio universal?
No. Reactive diluents, resin blends and product-specific formulation design can change the required ratio.

Why is the pot life so short?
ARADUR 90 uses highly reactive thiol-epoxy chemistry that proceeds rapidly at ambient temperature.

Does batch size affect pot life?
Yes. Larger mixed masses can retain more exothermic heat and can react faster than the 20 g reference batch.

Is ARADUR 90 flexible?
It provides relatively good flexibility compared with many rigid fast-cure epoxy systems.

Is ARADUR 90 heat resistant?
Heat resistance is limited compared with many higher-Tg cycloaliphatic or aromatic amine-cured epoxy systems.

Does ARADUR 90 have one universal CAS number?
No. It is a proprietary polymercaptan formulation and should not be assigned one universal CAS number without the current product-specific SDS.

What is the density?
Use the current product-specific TDS or SDS; no sufficiently reliable exact current public value was verified for this profile.

What is the flash point?
Use the current product-specific SDS; no sufficiently reliable exact current public value was verified for this profile.

What is the shelf life?
Published product information gives at least approximately one year under specified original sealed-container storage conditions.

How should ARADUR 90 be stored?
Keep it tightly closed under dry controlled conditions and protect it from excessive heat, prolonged air exposure and incompatible reactive materials.

What documents should be checked before use?
Use the current product TDS, SDS and batch-specific COA or quality documentation where available.

FINAL TECHNICAL SUMMARY

ARADUR 90 is a 100%-active polymercaptan, or polythiol, epoxy curing agent designed for exceptionally rapid ambient-temperature cure.
Published selector data give approximately 10,000-16,000 mPa·s viscosity at 25°C, approximately 200 g/eq active-hydrogen equivalent weight, approximately 4-5 minutes reference gel time with ARALDITE GY 250 using a 20 g mixture at 23°C and Gardner color ≤3.

ARADUR 90 is not an amine hardener, so amine value is not applicable.
The cure mechanism is based on rapid thiol-epoxy addition rather than conventional amine-epoxy reaction.
Benzyl-alcohol-free status is documented.
The hardener is supplied as an approximately 100%-active liquid and is particularly suited to solvent-free formulation.
Core documented uses include construction adhesives, mastics, repair mortars, rapid-repair systems and selected fast-curing coatings.
Additional documented adhesive applications include vehicle assembly, battery cover sealing, battery assembly, cable sealing, motor and magnet bonding, potting and encapsulation, appliance assembly, sporting goods, aerospace, marine, rail, recreational vehicles, trucks and wind-energy assembly.
ARADUR 90 provides good cohesion, good adhesion and relatively good flexibility while maintaining extremely high reactivity.
The principal processing limitation is very short pot life.

The approximately 4-5 minute reference gel time was measured on a 20 g mixture, and larger batches can cure faster because of exothermic heat buildup.
Small batches, cartridges, meter-mix dispensing and well-organized assembly processes are therefore especially appropriate.
For a resin EEW around 190 g/eq, simple theoretical stoichiometry gives approximately 105 parts ARADUR 90 per 100 parts resin.
That calculation is a starting point rather than a universal production ratio.
ARADUR 90 can be formulated with ARALDITE GY 250 and other compatible liquid epoxy resins when their EEW and required performance are known.
The main technical tradeoff is limited heat resistance compared with many higher-Tg amine-cured epoxy systems.
This limitation should be considered carefully in motors, electronics, automotive assemblies and other applications exposed to elevated service temperature.
ARADUR 90 is a proprietary formulated polymercaptan and should not be assigned an invented single molecular formula, molecular weight, CAS number or EC number.

For ARADUR 90 technical specifications, application guidance, TDS, SDS, COA and formulation support, contact Ataman Chemicals with the intended epoxy resin, batch size, application temperature, target working time and required service performance.

Ataman Chemicals
Phone: +90 216 577 10 10
Email: info@atamankimya.com