ARADUR 70

ARADUR 70 is a high-viscosity polyether urethane amine curing agent developed for flexible epoxy formulations based on compatible liquid epoxy resins.
ARADUR 70 provides permanent internal flexibility, high elongation, impact resistance, and useful adhesion without relying on an externally added plasticizer.
ARADUR 70 is primarily employed in crack-bridging membranes, flexible civil-engineering coatings, elastic adhesives, epoxy castings, potting compounds, and flexible tank-lining base coats.

CAS Number: Proprietary mixture; no single CAS Number applies to the complete commercial product
EC Number: Proprietary mixture; no single EC Number applies to the complete commercial product
Molecular Formula: Not applicable to a proprietary polyether urethane amine mixture
Molecular Weight: Not applicable to a proprietary polyether urethane amine mixture

SYNONYMS:

ARADUR 70, ARADUR® 70, Aradur 70 Hardener, Aradur 70 Curing Agent, Aradur 70 Epoxy Hardener, Aradur 70 Epoxy Curing Agent, Aradur 70 Polyamine Hardener, Aradur 70 Polyether Urethane Amine, Aradur 70 Polyether Urethane Amine Curing Agent, Aradur 70 Flexible Epoxy Hardener, Aradur 70 Flexible Binder Hardener, Aradur 70 High-Viscosity Hardener, Aradur 70 Impact-Resistant Hardener, Aradur 70 Crack-Bridging Hardener, Aradur 70 Elastomeric Epoxy Hardener, Aradur 70 Elastic Adhesive Hardener, Aradur 70 Potting Hardener, Aradur 70 Casting Hardener, Aradur 70 Coating Hardener, Aradur 70 Tank-Lining Hardener, Aradur 70 Base-Coat Hardener, Aradur 70 Film-Adhesive Hardener, Aradur 70 Insulator Hardener, Aradur 70 Prepreg Hardener, Aradur 70 Powder-Coating Hardener, Aradur 70 Epoxy Crosslinker, Aradur 70 Epoxy Crosslinking Agent, Aradur 70 Reactive Amine, Aradur 70 Polymerizing Agent, Aradur 70 Accelerator, Aradur 70 Resin Component B, ARADUR 70, ARADUR® 70, Flexible Polyamine Curing Agent, Polyether Urethane Amine Hardener, Polyether Urethane Amine Curative, Flexible Epoxy Curing Agent, High-Elongation Epoxy Hardener, Impact-Resistant Epoxy Curative, Crack-Bridging Epoxy Curing Agent, Elastomeric Epoxy Crosslinker, Permanent-Flexibility Epoxy Hardener, Low-Temperature Flexible Epoxy Hardener, Flexible Thermoset Hardener, Amine-Functional Epoxy Curative

APPLICATIONS

ARADUR 70 serves as a reactive hardener in flexible epoxy binder systems based on modified or unmodified bisphenol A epoxy resins.
ARADUR 70 supports the formulation of compatible bisphenol F epoxy systems where reduced rigidity and improved deformation capability are required.
ARADUR 70 contributes permanent internal flexibility because its flexibilizing structure becomes chemically incorporated into the cured network.
ARADUR 70 provides an alternative to externally plasticized epoxy systems whose flexibility may decline through migration or extraction.

ARADUR 70 functions as the curing component in nonporous crack-bridging membranes applied over properly prepared construction substrates.
ARADUR 70 enables cured epoxy layers to accommodate limited substrate movement without immediately developing brittle fractures.
ARADUR 70 enhances membrane elongation while maintaining adhesion to compatible mineral and metallic surfaces.
ARADUR 70 offers a route to volatile-organic-compound-free crack-bridging formulations when the complete resin system is designed accordingly.

ARADUR 70 finds application in flexible high-performance coatings used in civil-engineering projects.
ARADUR 70 promotes impact resistance in coatings exposed to mechanical movement, vibration, and localized deformation.
ARADUR 70 supports continuous protective films that combine flexibility with useful chemical and temperature resistance.
ARADUR 70 allows formulators to produce resilient coatings for concrete, steel, and other appropriately prepared substrates.

ARADUR 70 serves as a hardener in impact-resistant epoxy coatings intended for demanding industrial environments.
ARADUR 70 contributes to energy absorption by reducing the brittle response associated with highly rigid epoxy networks.
ARADUR 70 helps cured films resist chipping, cracking, and localized damage caused by mechanical impact.
ARADUR 70 provides useful mechanical properties when resin selection, stoichiometry, film thickness, and cure conditions are properly controlled.

ARADUR 70 functions as a reactive binder component in flexible base coats for tank-lining systems.
ARADUR 70 supports adhesion between prepared substrates and compatible subsequent lining layers.
ARADUR 70 contributes flexibility that can help the base coat accommodate limited dimensional movement beneath the lining.
ARADUR 70 enables formulators to combine substrate adhesion, impact resistance, and chemical-resistance potential within a multilayer system.

ARADUR 70 finds application in tank-lining formulations intended for concrete or sand-blasted steel surfaces.
ARADUR 70 promotes strong attachment to dry concrete when the substrate has been properly cleaned and prepared.
ARADUR 70 supports adhesion to abrasive-blasted steel by forming a reactive thermoset layer across the profiled metal surface.
ARADUR 70 offers flexible performance where rigid lining systems may be vulnerable to substrate movement or mechanical shock.

ARADUR 70 serves as a curing agent in elastic adhesive systems requiring movement accommodation after cure.
ARADUR 70 enhances elongation and toughness while preserving the permanent thermoset character of the adhesive.
ARADUR 70 supports bonded assemblies exposed to vibration, thermal movement, or intermittent mechanical loading.
ARADUR 70 provides flexibility without depending exclusively on mobile nonreactive plasticizer molecules.

ARADUR 70 functions as the hardener component in film adhesives developed for flexible or impact-sensitive assemblies.
ARADUR 70 contributes cohesive toughness within the cured adhesive film.
ARADUR 70 facilitates stress distribution across bonded joints rather than concentrating stress at one rigid interface.
ARADUR 70 enables adhesive developers to balance elongation, adhesion, modulus, and curing behavior through resin selection and formulation testing.

ARADUR 70 finds application in elastomeric sealants based on reactive epoxy chemistry.
ARADUR 70 promotes permanent flexibility in joint materials that must tolerate limited expansion, contraction, or vibration.
ARADUR 70 supports sealant formulations requiring stronger adhesion and chemical resistance than many nonreactive flexible compounds.
ARADUR 70 allows the finished material to remain crosslinked while retaining a comparatively low-modulus response.

ARADUR 70 serves as a curing component in flexible epoxy castings used for protective and functional parts.
ARADUR 70 enhances the ability of cast articles to tolerate impact, bending, and thermal movement.
ARADUR 70 contributes to high elongation when combined with a compatible resin at an appropriate mixing ratio.
ARADUR 70 provides low-temperature flexibility in systems designed to remain functional at temperatures near −10°C.

ARADUR 70 functions as a hardener in flexible potting compounds used around electrical and electronic components.
ARADUR 70 supports stress relief around embedded parts that may expand and contract at different rates.
ARADUR 70 reduces the likelihood that a highly rigid encapsulant will transfer excessive mechanical stress to sensitive components.
ARADUR 70 enables potting systems to combine electrical insulation with impact resistance and flexible mechanical behavior.

ARADUR 70 finds application in encapsulation compounds for connectors, cable terminations, sensors, and electrical assemblies.
ARADUR 70 promotes adhesion to compatible metallic and polymeric surfaces after appropriate pretreatment.
ARADUR 70 contributes resilience during vibration, handling, and temperature cycling.
ARADUR 70 offers a flexible epoxy matrix for applications in which brittle cracking could reduce environmental protection.

ARADUR 70 serves as a curing agent in electrical insulators and insulation components requiring impact-resistant thermoset behavior.
ARADUR 70 supports the formation of flexible insulating matrices around conductors, inserts, or reinforcing materials.
ARADUR 70 contributes to mechanical durability where shock or dimensional movement must be accommodated.
ARADUR 70 provides a formulation option for wire-and-cable insulation systems after electrical, thermal, and aging performance has been validated.

ARADUR 70 functions as a reactive component in wire-and-cable jacketing or insulation formulations based on compatible epoxy technology.
ARADUR 70 enhances flexibility at reduced temperatures, thereby supporting cable movement and handling.
ARADUR 70 contributes to impact resistance where the cured insulation may experience installation or service-related stress.
ARADUR 70 enables formulators to develop chemically crosslinked protective systems with permanently retained flexibility.

ARADUR 70 finds application in base coats applied beneath reinforced or filled epoxy protective systems.
ARADUR 70 promotes adhesion between the substrate and subsequent flexible resin layers.
ARADUR 70 supports crack-bridging performance by reducing the rigidity of the cured binder.
ARADUR 70 offers improved stress accommodation where substrate movement could otherwise produce intercoat cracking or delamination.

ARADUR 70 serves as a curing component in epoxy membranes applied to dry concrete surfaces.
ARADUR 70 contributes excellent adhesion when the concrete is sound, clean, dry, and appropriately profiled.
ARADUR 70 helps the membrane retain flexibility during low-temperature service.
ARADUR 70 provides a nonporous cured barrier when application thickness, mixing, and substrate preparation are properly controlled.

ARADUR 70 functions as a hardener in protective coatings for abrasive-blasted steel.
ARADUR 70 promotes mechanical anchoring and chemical adhesion across the prepared metal profile.
ARADUR 70 enhances impact tolerance in coatings exposed to handling, vibration, or equipment movement.
ARADUR 70 contributes to chemical-resistance performance as part of a fully cured and application-specific epoxy formulation.

ARADUR 70 finds application in epoxy sealers intended to provide flexible surface protection.
ARADUR 70 supports continuous film formation across properly prepared concrete, metal, and steel substrates.
ARADUR 70 helps reduce brittle surface failure where the substrate undergoes limited movement.
ARADUR 70 allows sealer formulations to retain flexibility at temperatures where conventional rigid epoxy systems may become more vulnerable.

ARADUR 70 serves as a flexibilizing curing agent in resin-rich construction compounds.
ARADUR 70 improves elongation by introducing flexible polyether urethane segments into the cured network.
ARADUR 70 contributes toughness without converting the epoxy into a thermoplastic material.
ARADUR 70 enables formulators to adjust modulus and impact response through the selected resin-to-hardener ratio.

ARADUR 70 functions as a polymerizing agent in compatible thermoset epoxy systems.
ARADUR 70 opens epoxide rings through its reactive amine functionality and connects resin molecules into a crosslinked structure.
ARADUR 70 supports network formation at ambient or application-specific curing temperatures.
ARADUR 70 provides the flexible molecular segments responsible for the product’s characteristic low-temperature performance.

ARADUR 70 finds application in prepreg formulations requiring a flexible cured matrix.
ARADUR 70 contributes impact tolerance and deformation capability to suitably designed fiber-reinforced composites.
ARADUR 70 supports adhesion between the epoxy matrix and compatible reinforcing fibers.
ARADUR 70 enables composite developers to balance flexibility, cure response, storage behavior, and final mechanical performance through controlled formulation.

ARADUR 70 serves as a curing component in reinforced epoxy laminates exposed to impact or cyclic mechanical loading.
ARADUR 70 promotes matrix toughness around fibers and embedded reinforcements.
ARADUR 70 contributes to reduced brittle fracture propagation compared with highly rigid binder systems.
ARADUR 70 provides a flexible resin phase whose final performance depends on reinforcement type, fiber content, cure cycle, and laminate design.

ARADUR 70 functions as an additive or hardener component in selected powder-coating formulations.
ARADUR 70 supports flexible cured films where impact resistance and deformation are more important than maximum rigidity.
ARADUR 70 contributes reactive amine functionality to systems designed for controlled thermal processing.
ARADUR 70 requires application-specific evaluation because its liquid and high-viscosity form affects powder preparation and handling.

ARADUR 70 finds application in industrial coating systems requiring a combination of flexibility and useful chemical resistance.
ARADUR 70 promotes durable adhesion on compatible mineral and metallic substrates.
ARADUR 70 helps the cured coating tolerate mechanical stress without immediate brittle cracking.
ARADUR 70 offers formulators a permanently flexible binder concept for demanding protective finishes.

ARADUR 70 serves as a modifier for epoxy systems whose cured modulus must be reduced.
ARADUR 70 enables controlled softening through chemically bound flexible segments rather than through freely migrating additives.
ARADUR 70 contributes improved elongation and impact response when incorporated at the validated formulation level.
ARADUR 70 allows mechanical properties to be tailored through changes in resin functionality, stoichiometry, fillers, and cure schedule.

ARADUR 70 functions as a high-viscosity reactive component in filled flexible epoxy compounds.
ARADUR 70 supports the suspension and wetting of suitably selected pigments, fillers, and reinforcing materials.
ARADUR 70 contributes body and sag resistance, although the complete rheology depends on the resin and additive package.
ARADUR 70 enables formulators to develop filled membranes, sealants, coatings, and adhesives without sacrificing permanent flexibility.

ARADUR 70 finds application in systems exposed to cool environments where flexibility must remain available after cure.
ARADUR 70 retains a high degree of flexibility at temperatures reported as low as approximately −10°C.
ARADUR 70 helps reduce cold-induced brittleness in compatible epoxy formulations.
ARADUR 70 provides low-temperature mechanical resilience when the complete system has been properly cured and tested.

DESCRIPTION

ARADUR 70 is a proprietary polyether urethane amine supplied as a high-viscosity liquid epoxy curing agent.
ARADUR 70 is described by the manufacturer as a hazy liquid that should be free from visible contamination.
ARADUR 70 belongs to the polyamine chemical family and performs as a hardener, curing agent, accelerator, and polymerizing agent.
ARADUR 70 is intended for use with compatible modified or unmodified bisphenol A- and bisphenol F-based liquid epoxy resins.

Structurally, ARADUR 70 is not a single defined low-molecular-weight compound.
ARADUR 70 contains polyether urethane segments together with reactive amine functionality.
ARADUR 70 incorporates its flexible molecular structure into the epoxy network during cure.
ARADUR 70 therefore provides chemically bound flexibility rather than the temporary softening associated with certain external plasticizers.

Chemically, ARADUR 70 reacts with epoxide groups through amine-initiated ring-opening polyaddition.
ARADUR 70 creates carbon–nitrogen linkages and secondary hydroxyl groups as curing progresses.
ARADUR 70 converts the initially liquid resin-hardener blend into an insoluble crosslinked thermoset.
ARADUR 70 produces a network whose flexibility, modulus, elongation, and chemical resistance depend on the complete formulation.

ARADUR 70 has a manufacturer-reported amine value of 65–75 mg KOH/g.
ARADUR 70 has a substantially lower amine value than many small-molecule aliphatic amine hardeners.
ARADUR 70 therefore requires a comparatively high addition level in certain reference formulations.
ARADUR 70 is reported at 400 parts per hundred resin with ARALDITE GY 6010, but this ratio applies only to that specified resin system.

ARADUR 70 should not be assigned one universal mixing ratio for all epoxy resins.
ARADUR 70 dosage must be determined from the selected resin, epoxy equivalent, product specification, and validated performance requirements.
ARADUR 70 may produce undercured, tacky, weak, or chemically unstable material if the resin-to-hardener balance is incorrect.
ARADUR 70 formulation trials should therefore confirm stoichiometry, mixing uniformity, cure progression, and final performance.

ARADUR 70 has a reported viscosity of 17,000–27,000 mPa·s at 25°C.
ARADUR 70 is consequently much more viscous than low-viscosity conventional amine hardeners.
ARADUR 70 viscosity decreases as temperature rises, although uncontrolled heating can alter working time and reaction rate.
ARADUR 70 may require suitable pumping, warming, or metering equipment for consistent industrial processing.

ARADUR 70 has a reported density of approximately 1.02 g/cm³ at 25°C.
ARADUR 70 has a closed-cup flash point of approximately 103°C.
ARADUR 70 is therefore a combustible organic product even though it has relatively low volatility at room temperature.
ARADUR 70 should be protected from open flames, sparks, hot surfaces, and uncontrolled heating.

ARADUR 70 exhibits a reference gel time of approximately 300–500 minutes at 23°C when tested with ARALDITE GY 250 in a 100 g system.
ARADUR 70 gel time can change substantially with resin type, mixing ratio, material temperature, batch mass, and filler loading.
ARADUR 70 may cure more rapidly in a large confined mass because the epoxy–amine reaction generates heat.
ARADUR 70 working time should therefore be measured under conditions representative of the intended production process.

ARADUR 70 forms cured systems with a reported glass-transition temperature not exceeding approximately −10°C when tested with ARALDITE GY 250.
ARADUR 70 low glass-transition behavior is consistent with its role as a flexible epoxy hardener.
ARADUR 70 allows cured materials to remain comparatively compliant at low temperatures.
ARADUR 70 should not be selected for high-temperature structural service without application-specific thermal and mechanical testing.

ARADUR 70 provides high elongation at break and excellent adhesion in suitably formulated systems.
ARADUR 70 supports good adhesion to dry concrete and abrasive-blasted steel.
ARADUR 70 contributes impact resistance and useful mechanical properties while reducing cured-system rigidity.
ARADUR 70 final adhesion still depends on surface cleanliness, profile, moisture, contamination, application temperature, and cure conditions.

ARADUR 70 is suitable for nonporous membranes, flexible coatings, elastic adhesives, castings, potting compounds, and tank-lining base coats.
ARADUR 70 is also identified for film adhesives, insulators, prepregs, powder coatings, and impact-resistant coatings.
ARADUR 70 application suitability depends on the exact epoxy resin and all pigments, fillers, modifiers, and reinforcements present.
ARADUR 70 should therefore be tested as part of the complete finished system rather than evaluated only as an isolated hardener.

ARADUR 70 flexibility is permanent because the flexibilizing groups participate in the crosslinked polymer structure.
ARADUR 70 is consequently less dependent on mobile external plasticizers that may migrate from the cured material.
ARADUR 70 can support more stable long-term flexibility when the system is exposed to low temperatures.
ARADUR 70 resistance to extraction, immersion, weathering, and aging must nevertheless be verified for the final formulation.

ARADUR 70 is supplied as a proprietary commercial mixture rather than a pure substance with one molecular formula.
ARADUR 70 does not have one representative molecular weight for the complete product.
ARADUR 70 component CAS and EC identifiers must be obtained from the current regional Safety Data Sheet.
ARADUR 70 composition should not be inferred from the trade name or general chemical-family description.

ARADUR 70 is listed by the manufacturer as free from Substances of Very High Concern under its stated product-labeling claim.
ARADUR 70 regulatory status may change as legislation, composition, and candidate lists are updated.
ARADUR 70 compliance must therefore be reconfirmed for the destination country and intended application.
ARADUR 70 current producer documentation should take priority over historical catalog information.

ARADUR 70 is stable when stored at room temperature in its original sealed container according to the manufacturer’s public guidance.
ARADUR 70 containers should remain tightly closed when not in use or during transport.
ARADUR 70 should be protected from contamination with water, acids, oxidizing agents, epoxy resin, and unidentified chemicals.
ARADUR 70 partially used containers should be resealed promptly to reduce moisture absorption and atmospheric contamination.

ARADUR 70 can cause severe eye and skin irritation and may cause allergic skin reactions.
ARADUR 70 vapor or mist should not be inhaled.
ARADUR 70 exposure may produce central nervous system depression according to the manufacturer’s safety warning.
ARADUR 70 should be handled only with appropriate ventilation, protective equipment, and access to emergency washing facilities.

PROPERTIES

Product Name: ARADUR 70
Registered Trade Name: ARADUR® 70
Product Type: Reactive epoxy curing agent
Chemical Family: Polyamines
Specific Chemical Description: Polyether urethane amine curing agent
Primary Functions: Accelerator, curing agent, hardener, and polymerizing agent
CAS Number: No single CAS Number applies to the complete proprietary mixture
EC Number: No single EC Number applies to the complete proprietary mixture
Molecular Formula: Not applicable to a proprietary mixture
Molecular Weight: Not applicable to a proprietary mixture
Physical Form: Liquid
Appearance: Hazy liquid with no visible contamination
Typical Odor: Product-specific amine odor; confirm with the current Safety Data Sheet
Density at 25°C: Approximately 1.02 g/cm³
Viscosity at 25°C: 17,000–27,000 mPa·s
Amine Value: 65–75 mg KOH/g
Flash Point: Approximately 103°C
Flash-Point Method: Closed cup
Reference Gel Time: Approximately 300–500 minutes
Reference Gel-Time Conditions: 100 g system with ARALDITE GY 250 at 23°C
Reference Glass-Transition Temperature: Maximum approximately −10°C
Reference Tg System: Cured with ARALDITE GY 250
Reference Mix Ratio: 400 phr
Reference Mix-Ratio Resin: ARALDITE GY 6010 liquid epoxy resin
Compatible Epoxy Types: Modified or unmodified bisphenol A- and bisphenol F-based liquid epoxy resins
Material Compatibility: Dry concrete, metal substrates, and steel substrates after suitable preparation
Primary End Uses: Base coats, elastomeric sealants, film adhesives, impact-resistant coatings, insulators, potting compounds, powder coatings, prepregs, and tank linings
Additional Applications: Nonporous crack-bridging membranes, flexible civil-engineering coatings, elastic adhesives, flexible epoxy castings, and flexible tank-lining base coats
Principal Performance: Permanent flexibility within the cured network
Low-Temperature Performance: High flexibility reported at temperatures as low as approximately −10°C
Mechanical Features: High elongation, good mechanical properties, impact resistance, and modified modulus
Adhesion Characteristics: Good adhesion to dry concrete and sand-blasted steel in suitable formulations
Chemical-Resistance Characteristic: Useful chemical resistance in correctly formulated and fully cured systems
VOC Characteristic: Can enable VOC-free crack-bridging formulations
Labeling Claim: SVHC-free according to current public producer information
Cure Mechanism: Epoxy–amine ring-opening polyaddition
Reaction with Epoxy Resin: Exothermic
Cured Material Type: Flexible crosslinked thermoset
Water Solubility: Refer to the current regional Safety Data Sheet
Vapor Pressure: Refer to the current regional Safety Data Sheet
pH: Product-specific and not confirmed in the public technical information
Chemical Stability: Stable under recommended storage conditions
Hazardous Polymerization: Not expected during separate recommended storage
Health Warning: Can cause severe eye and skin irritation and allergic skin reactions
Additional Health Warning: May cause central nervous system depression
Storage Condition: Room temperature in the original sealed container
Packaging Reference: Approximately 418-pound steel drums in the cited regional product information
Current Documentation: Confirm all specifications against the latest Technical Data Sheet, Safety Data Sheet, and certificate of analysis.

FIRST AID

Inhalation:
Move the affected person immediately to fresh air.
Keep the person at rest in a position comfortable for breathing.
Provide oxygen through trained personnel if breathing is difficult.
Obtain immediate medical attention if breathing problems, dizziness, drowsiness, or other symptoms occur.

Skin Contact:
Remove contaminated clothing and footwear promptly.
Wash the affected skin thoroughly with mild soap and plenty of water.
Continue rinsing if irritation, burning, or discomfort is present.
Obtain medical attention because ARADUR 70 may cause severe irritation or an allergic skin reaction.
Wash contaminated clothing before reuse or dispose of it safely.

Eye Contact:
Immediately flush the eyes with clean water for at least 15 minutes.
Hold the eyelids open to ensure thorough irrigation.
Remove contact lenses when present and easy to do, then continue rinsing.
Obtain immediate medical attention because ARADUR 70 can cause severe eye irritation.

Ingestion:
Rinse the mouth carefully with water.
Give plenty of water only when the affected person is fully conscious and able to swallow.
Do not give anything by mouth to an unconscious or convulsing person.
Do not induce vomiting unless instructed by qualified medical personnel.
Obtain immediate medical attention and provide the current product Safety Data Sheet.

Note to Physicians:
No product-specific antidote is identified in the public manufacturer information.
Provide supportive care and treat according to the patient’s symptoms and clinical condition.
Assess the eyes, skin, respiratory system, gastrointestinal tract, and neurological condition after significant exposure.
Use the latest regional ARADUR 70 Safety Data Sheet as the primary medical reference.

HANDLING AND STORAGE

Handling:
Handle ARADUR 70 only after reviewing the current regional Safety Data Sheet.
Avoid contact with the eyes, skin, and clothing.
Do not inhale vapor, aerosol, mist, or fumes generated during heating or processing.
Use closed transfer and metering systems wherever reasonably practicable.
Wash the hands, face, and exposed skin thoroughly after handling.
Do not eat, drink, or smoke in areas where ARADUR 70 is processed.
Keep the container tightly closed when the product is not in use.
Prevent accidental contamination with epoxy resin until controlled mixing is intended.

Ventilation:
Provide effective general ventilation in storage and processing areas.
Use local exhaust ventilation at drum openings, pumps, mixers, filling points, and sampling stations.
Control mist and vapor emissions at their source rather than allowing them to spread through the workplace.
Provide additional ventilation when ARADUR 70 is heated, sprayed, mechanically agitated, or handled in confined spaces.
Use suitable respiratory protection when engineering controls cannot adequately limit exposure.
Select respiratory equipment through a documented workplace risk assessment.

Storage:
Store ARADUR 70 at room temperature in its original sealed container.
Keep the container tightly closed when the product is not being transferred or sampled.
Store ARADUR 70 in a dry and well-ventilated location.
Protect the product from excessive heat, direct sunlight, moisture, and physical damage.
Keep ARADUR 70 separated from epoxy resins until intentional formulation.
Store ARADUR 70 away from acids, oxidizing agents, and other incompatible materials identified in the current Safety Data Sheet.
Carefully reseal partially used containers immediately after use.
Maintain stock within the shelf life stated by the supplier.

Spill and Leak Procedures:
Restrict access to the affected area and remove unnecessary personnel.
Provide effective ventilation before beginning recovery operations.
Wear suitable chemical-resistant gloves, protective clothing, eye protection, and respiratory protection as required.
Stop the source of the leak only when this can be done without personal risk.
Prevent ARADUR 70 from entering drains, sewers, soil, groundwater, or surface water.
Contain free liquid with sand, earth, vermiculite, or another chemically compatible inert absorbent.
Collect recovered liquid and contaminated absorbent in tightly closed and correctly labeled waste containers.
Clean the affected surface using the procedure specified in the current regional Safety Data Sheet.
Dispose of contaminated materials through an authorized waste-management contractor.

Handling Precautions:
Wear chemical-resistant gloves selected from documented permeation and compatibility data.
Use tightly fitting chemical goggles during transfer, mixing, and application.
Wear a face shield in addition to goggles where splashing is reasonably foreseeable.
Use protective clothing and footwear capable of preventing direct liquid contact.
Provide accessible emergency eyewash and safety-shower equipment near major handling areas.
Inspect pumps, hoses, valves, seals, and transfer connections before use.
Use equipment suitable for high-viscosity reactive amine products.
Mix only quantities that can be processed within the validated working time.
Avoid leaving mixed epoxy and ARADUR 70 in large confined masses because curing is exothermic.
Review the current ARADUR 70 Technical Data Sheet, Safety Data Sheet, and certificate of analysis before production, transport, storage, application, or disposal.