ARADUR 3253-1

ARADUR 3253-1 is a low-viscosity formulated cycloaliphatic polyamine curing agent developed for use with compatible liquid epoxy resins.

ARADUR 3253-1 combines fast cure development with comparatively long open time, good surface appearance, reduced yellowing, and high resistance to water spotting.

ARADUR 3253-1 is primarily used in solvent-free flooring compounds, epoxy resin mortars, natural stone carpets, and decorative floor toppings.

CAS Number: Not assigned as a single number to the complete formulated mixture

EC Number: Not assigned as a single number to the complete formulated mixture

Molecular Formula: Not applicable to a formulated polyamine mixture

Molecular Weight: Not applicable to a formulated polyamine mixture

SYNONYMS

ARADUR 3253-1, ARADUR-3253-1, ARADUR3253-1, 3253-1 Epoxy Hardener, 3253-1 Epoxy Curing Agent, 3253-1 Epoxy Accelerator, Formulated Cycloaliphatic Polyamine, Modified Cycloaliphatic Polyamine Hardener, Cycloaliphatic Polyamine Curing Agent, Cycloaliphatic Amine Epoxy Hardener, Low-Viscosity Epoxy Hardener, Low-Viscosity Epoxy Curing Agent, Liquid Epoxy Hardener, Liquid Polyamine Hardener, Liquid Polyamine Curing Agent, Reactive Amine Epoxy Hardener, Epoxy Resin Crosslinking Agent, Epoxy Crosslinker, Two-Component Epoxy Hardener, 2K Epoxy Curing Agent, Ambient-Cure Epoxy Hardener, Room-Temperature Epoxy Hardener, Solvent-Free Epoxy Hardener, Solventless Epoxy Curing Agent, Flooring Epoxy Hardener, Industrial Flooring Curing Agent, Decorative Flooring Hardener, Self-Leveling Epoxy Hardener, Epoxy Mortar Hardener, Epoxy Screed Hardener, Natural Stone Carpet Hardener, Natural Stone Carpet Binder Curing Agent, Decorative Floor Topping Hardener, Low-Yellowing Epoxy Hardener, Reduced-Yellowing Epoxy Curing Agent, Light-Colored Epoxy Hardener, Water-Spot-Resistant Epoxy Hardener, Water-Mark-Resistant Epoxy Hardener, Fast-Curing Polyamine Hardener, Long-Open-Time Epoxy Hardener, Extended-Working-Time Epoxy Hardener, Low-Viscosity Flooring Hardener, High-Gloss Epoxy Hardener, Smooth-Surface Epoxy Curing Agent, Mechanical-Resistant Epoxy Hardener, Mineral-Filled Epoxy Hardener, Quartz-Filled Flooring Hardener, Solvent-Free Coating Hardener, Construction Epoxy Hardener, Concrete Flooring Hardener, Polyamine Epoxy Crosslinker, Amine-Functional Epoxy Hardener, Industrial Epoxy Curing Component

APPLICATIONS

ARADUR 3253-1 serves as a curing agent in solvent-free industrial epoxy flooring systems applied to properly prepared concrete substrates.
ARADUR 3253-1 supports the formation of hard, continuous, and mechanically resistant floor surfaces after reaction with a compatible epoxy resin.

ARADUR 3253-1 functions in low-viscosity self-leveling epoxy floors requiring easy pouring and controlled spreading.
ARADUR 3253-1 helps the mixed formulation flow across the substrate while maintaining sufficient open time for application and finishing.

ARADUR 3253-1 contributes to decorative epoxy floor toppings requiring smooth and visually uniform surfaces.
ARADUR 3253-1 provides reduced yellowing and good surface appearance in correctly formulated light-colored systems.

ARADUR 3253-1 supports clear or lightly pigmented flooring formulations where long-term visual quality is important.
ARADUR 3253-1 helps reduce the discoloration commonly associated with more strongly yellowing amine curing systems.

ARADUR 3253-1 serves as the reactive hardener component in two-component epoxy flooring products.
ARADUR 3253-1 reacts with epoxy groups to form a three-dimensional crosslinked thermoset network.

ARADUR 3253-1 functions in high-gloss flooring systems requiring good leveling and limited surface irregularity.
ARADUR 3253-1 supports smooth film formation when mixing, application temperature, substrate condition, and curing humidity are controlled.

ARADUR 3253-1 contributes to seamless floors used in warehouses, workshops, production areas, and technical rooms.
ARADUR 3253-1 helps produce a dense surface capable of tolerating routine pedestrian and equipment traffic.

ARADUR 3253-1 supports commercial interior floors requiring a combination of decorative appearance and mechanical durability.
ARADUR 3253-1 can be incorporated into pigmented systems containing compatible colorants, fillers, and decorative components.

ARADUR 3253-1 functions in retail, exhibition, and showroom flooring systems requiring clear or lightly colored resin binders.
ARADUR 3253-1 helps maintain visual uniformity when pigments, aggregates, and application procedures are properly controlled.

ARADUR 3253-1 contributes to epoxy resin mortars containing silica, quartz, mineral aggregate, and compatible liquid epoxy resin.
ARADUR 3253-1 develops the crosslinked binder that holds the mineral particles together after complete curing.

ARADUR 3253-1 supports epoxy screeds designed to create thicker protective and load-distributing floor layers.
ARADUR 3253-1 permits high aggregate loading when wetting, mixing energy, resin content, and application temperature are optimized.

ARADUR 3253-1 functions in natural stone carpet systems containing decorative stone, marble, or quartz aggregate.
ARADUR 3253-1 helps bind the individual mineral particles while maintaining an attractive exposed-aggregate appearance.

ARADUR 3253-1 contributes to decorative quartz flooring systems requiring effective aggregate wetting and cured-film clarity.
ARADUR 3253-1 must be evaluated with the selected aggregate because moisture, porosity, color, and surface contamination can affect appearance.

ARADUR 3253-1 supports broadcast flooring systems in which decorative or slip-resistant aggregate is distributed over a wet epoxy layer.
ARADUR 3253-1 provides the reactive matrix needed to anchor the broadcast material after curing.

ARADUR 3253-1 functions in slip-resistant floor coatings containing selected mineral particles or textured finishing materials.
ARADUR 3253-1 helps retain the particles while the final aggregate profile determines slip resistance and cleanability.

ARADUR 3253-1 contributes to clear sealing coats applied over decorative stone, quartz, or flake flooring systems.
ARADUR 3253-1 helps consolidate the decorative surface and reduce the release of loosely attached particles.

ARADUR 3253-1 supports pigmented sealing coats requiring reduced yellowing and resistance to visible water marks.
ARADUR 3253-1 allows the surface color to remain more consistent when the system is protected from unsuitable ultraviolet and chemical exposure.

ARADUR 3253-1 functions in flooring systems exposed to regular cleaning, mechanical wear, and intermittent liquid contact.
ARADUR 3253-1 performance must be confirmed against the exact cleaning agents, temperatures, exposure times, and service loads involved.

ARADUR 3253-1 contributes to laboratory, utility-room, and service-area floors requiring a smooth and readily cleanable finish.
ARADUR 3253-1 supports a continuous surface that can reduce dirt accumulation within joints and open pores.

ARADUR 3253-1 supports epoxy flooring systems requiring high resistance to mechanical stress.
ARADUR 3253-1 final impact, abrasion, compression, and wear performance depend on the resin, fillers, aggregate, film thickness, and degree of cure.

ARADUR 3253-1 functions in filled epoxy compounds containing silica flour, calcium carbonate, quartz, pigments, or functional mineral fillers.
ARADUR 3253-1 requires sufficient mixing to wet and distribute the fillers without introducing excessive air.

ARADUR 3253-1 contributes to patching mortars used for localized repair of compatible concrete flooring.
ARADUR 3253-1 requires clean, dry, structurally sound surfaces and suitable mechanical preparation before application.

ARADUR 3253-1 supports coving compounds applied at wall-to-floor transitions in industrial and commercial facilities.
ARADUR 3253-1 helps the filled mixture retain sufficient body while still allowing shaping and surface finishing.

ARADUR 3253-1 functions in epoxy grouts and gap-filling compounds after formulation-specific performance evaluation.
ARADUR 3253-1 can support controlled flow, adhesion, filler wetting, curing, and mechanical strength in compatible systems.

ARADUR 3253-1 contributes to solvent-free protective coatings requiring low application viscosity and good cured-surface quality.
ARADUR 3253-1 enables coating development without relying on large quantities of volatile organic solvents.

ARADUR 3253-1 supports thick-film epoxy coatings applied to prepared mineral or metal substrates.
ARADUR 3253-1 helps provide cohesive film formation while substrate preparation and primer selection control adhesion.

ARADUR 3253-1 functions in indoor protective topcoats requiring reduced yellowing and good visual appearance.
ARADUR 3253-1 should not be assumed to provide complete exterior ultraviolet stability without suitable formulation and exposure testing.

ARADUR 3253-1 contributes to clear or lightly pigmented coatings applied over decorative substrates.
ARADUR 3253-1 supports good surface appearance when contamination, moisture, entrapped air, and incorrect mixing are prevented.

ARADUR 3253-1 supports formulations requiring a balance between rapid cure development and practical working time.
ARADUR 3253-1 provides a representative gel time of approximately 40 minutes at 23°C in the specified reference formulation.

ARADUR 3253-1 functions in larger flooring applications where mixing, transport, pouring, spreading, and deaeration require sufficient open time.
ARADUR 3253-1 working time decreases when the mixed batch becomes larger or the starting temperature becomes higher.

ARADUR 3253-1 contributes to low-viscosity formulations that can be pumped or metered using suitable two-component processing equipment.
ARADUR 3253-1 equipment compatibility must be confirmed for seals, hoses, pumps, mixing heads, and cleaning procedures.

ARADUR 3253-1 supports epoxy systems prepared with an application-friendly reference ratio of approximately 100 parts resin to 50 parts ARADUR 3253-1 by weight.
ARADUR 3253-1 mixing ratio must be recalculated whenever the epoxy equivalent weight or complete resin composition changes.

ARADUR 3253-1 functions in formulations requiring easy incorporation of pigments, fillers, and decorative aggregates.
ARADUR 3253-1 low viscosity reduces mixing resistance and supports more uniform distribution of solid ingredients.

ARADUR 3253-1 contributes to formulations designed to resist visible water spotting during ambient curing.
ARADUR 3253-1 cannot prevent surface defects when condensation, standing water, high humidity, contamination, or unsuitable curing temperature is present.

ARADUR 3253-1 supports floor coatings requiring uniform film development at normal construction-site temperatures.
ARADUR 3253-1 cure rate must be evaluated under the minimum and maximum temperatures expected during application.

ARADUR 3253-1 functions in formulations requiring good early surface development after ambient-temperature application.
ARADUR 3253-1 final properties should not be assessed until sufficient curing time has elapsed under suitable conditions.

ARADUR 3253-1 contributes to epoxy systems requiring reduced surface tack and consistent hardness development.
ARADUR 3253-1 requires accurate proportioning and thorough mixing because unmixed material can remain soft or sticky.

ARADUR 3253-1 supports decorative systems where color, gloss, smoothness, and water-mark resistance are important selection criteria.
ARADUR 3253-1 appearance performance remains dependent on pigment quality, filler color, resin stability, application thickness, and exposure.

ARADUR 3253-1 functions as a viscosity-reducing component in compatible blended curing-agent systems.
ARADUR 3253-1 can modify flow and cure behavior when combined with another technically compatible epoxy curing agent.

ARADUR 3253-1 contributes accelerating activity within selected blended hardener formulations.
ARADUR 3253-1 blend performance must be verified through gel-time, hardness, surface, chemical-resistance, and storage-stability testing.

ARADUR 3253-1 supports development of customized curing packages for flooring, mortar, and decorative coating applications.
ARADUR 3253-1 allows formulators to adjust viscosity, open time, cure speed, surface appearance, and mechanical performance.

ARADUR 3253-1 functions in formulation screening involving different liquid epoxy resins and reactive diluents.
ARADUR 3253-1 requires stoichiometric calculation because reactive diluents can change the total epoxy equivalent weight.

ARADUR 3253-1 contributes to laboratory evaluations of epoxy-amine reaction kinetics and ambient curing.
ARADUR 3253-1 can be assessed through gel time, differential scanning calorimetry, hardness development, and mechanical testing.

ARADUR 3253-1 supports comparative testing of flooring hardeners with different viscosity, color, reactivity, and surface characteristics.
ARADUR 3253-1 allows formulators to evaluate the balance between processing time and early cured-property development.

ARADUR 3253-1 functions in pilot-scale flooring trials used to optimize mixing, spreading, leveling, deaeration, and curing.
ARADUR 3253-1 should be validated at realistic batch sizes because exothermic behavior differs from small laboratory samples.

ARADUR 3253-1 contributes to production-quality control through viscosity, amine value, appearance, and density testing.
ARADUR 3253-1 incoming inspection helps identify storage damage, contamination, or material outside the agreed specification.

ARADUR 3253-1 supports industrial epoxy applications requiring low viscosity, good surface appearance, and reduced yellowing.
ARADUR 3253-1 performance must be confirmed through complete formulation, substrate, processing, safety, and service-condition testing.

DESCRIPTION

ARADUR 3253-1 is a formulated cycloaliphatic polyamine mixture designed to cure compatible liquid epoxy resins.
ARADUR 3253-1 functions as a hardener, curing agent, accelerator, and reactive epoxy crosslinking component.

ARADUR 3253-1 is not one chemically pure molecule with a single defined molecular structure.
ARADUR 3253-1 consequently has no single complete-product molecular formula, molecular weight, CAS number, or EC number.

ARADUR 3253-1 normally appears as a clear and colorless liquid with a characteristic amine odor.
ARADUR 3253-1 has a specified viscosity of approximately 200–260 mPa·s at 25°C.

ARADUR 3253-1 has an amine value of approximately 290–320 mg KOH/g.
ARADUR 3253-1 amine value is an important quality-control parameter but does not independently determine the correct formulation ratio.

ARADUR 3253-1 has a typical density of approximately 1.02 g/cm³ at 20°C.
ARADUR 3253-1 has a reported closed-cup flash point of approximately 110°C.

ARADUR 3253-1 has an active-hydrogen equivalent weight of approximately 95 g/eq as a typical reference value.
ARADUR 3253-1 stoichiometric demand must be matched to the epoxy equivalent weight of the selected resin system.

ARADUR 3253-1 contains reactive amine hydrogen groups capable of opening strained epoxy rings.
ARADUR 3253-1 curing creates carbon-nitrogen and carbon-oxygen linkages within a crosslinked thermoset network.

ARADUR 3253-1 reacts exothermically with epoxy resin during mixing and curing.
ARADUR 3253-1 reaction rate increases as formulation temperature, mixed mass, or catalytic activity increases.

ARADUR 3253-1 provides relatively rapid cure development together with a useful open time.
ARADUR 3253-1 reference gel time is approximately 40 minutes at 23°C in a 250 g specified resin-hardener mixture.

ARADUR 3253-1 low viscosity supports easier weighing, pumping, mixing, pigment incorporation, and aggregate wetting.
ARADUR 3253-1 low viscosity also assists development of self-leveling solvent-free flooring formulations.

ARADUR 3253-1 contributes to good and even surfaces when combined with suitable epoxy resins.
ARADUR 3253-1 has a comparatively low tendency to produce visible water spots under properly controlled curing conditions.

ARADUR 3253-1 supports light-colored cured films with reduced yellowing under ultraviolet exposure relative to many conventional amine systems.
ARADUR 3253-1 does not eliminate all long-term color change caused by sunlight, heat, resin oxidation, pigments, or service chemicals.

ARADUR 3253-1 develops high resistance to mechanical stress in correctly formulated and fully cured systems.
ARADUR 3253-1 final strength depends on crosslink density, filler loading, aggregate distribution, cure temperature, and resin chemistry.

ARADUR 3253-1 is suitable for epoxy resin mortars, natural stone carpets, solvent-free coatings, and decorative floor toppings.
ARADUR 3253-1 can also be evaluated as a reactive modifier within technically compatible blended curing-agent systems.

ARADUR 3253-1 should be stored in a dry place between 2°C and 40°C and protected from direct sunlight.
ARADUR 3253-1 has a documented shelf life of at least three years under the stated sealed-storage conditions.

PROPERTIES

Chemical Class: Formulated Cycloaliphatic Polyamine

Primary Function: Epoxy Curing Agent, Hardener, and Accelerator

Physical Form: Liquid

Appearance: Clear, Colorless Liquid

Odor: Characteristic Amine Odor

Viscosity at 25°C: 200–260 mPa·s

Amine Value: 290–320 mg KOH/g

Density at 20°C: Approximately 1.02 g/cm³

Flash Point: Approximately 110°C

Representative Gel Time: Approximately 40 Minutes at 23°C

Reference Mixing Ratio: Approximately 100 Parts Compatible Epoxy Resin to 50 Parts ARADUR 3253-1 by Weight

Main Uses: Floorings, Epoxy Mortars, Natural Stone Carpets, and Solvent-Free Coatings

Key Features: Low Viscosity, Fast Cure, Long Open Time, Reduced Yellowing, Good Surface Appearance, and Water-Spot Resistance

Storage Temperature: 2–40°C

Shelf Life: At Least Three Years under the Stated Storage Conditions

FIRST AID

Inhalation

Move the person exposed to ARADUR 3253-1 vapor, mist, aerosol, or heated fumes into fresh air.
Obtain immediate medical attention if ARADUR 3253-1 exposure causes coughing, dizziness, respiratory irritation, wheezing, or breathing difficulty.

Skin Contact

Remove clothing contaminated with ARADUR 3253-1 and wash the affected skin immediately with plenty of soap and water.
Obtain prompt medical attention if ARADUR 3253-1 causes pain, persistent redness, blistering, irritation, or an allergic skin response.

Eye Contact

Immediately rinse eyes exposed to ARADUR 3253-1 with clean running water for at least 15 minutes while holding the eyelids open.
Remove contact lenses when easy to do, continue rinsing, and obtain urgent examination by qualified medical personnel.

Ingestion

Rinse the mouth carefully after accidental ingestion of ARADUR 3253-1 and do not induce vomiting unless instructed by medical personnel.
Contact a physician or poison information center immediately and provide the current safety documentation for ARADUR 3253-1.

Note to Physicians

Treat ARADUR 3253-1 exposure symptomatically and provide appropriate supportive care.
Assess ARADUR 3253-1 exposure according to the quantity, route, symptoms, accompanying epoxy components, and current regional Safety Data Sheet.

HANDLING AND STORAGE

Handling

Handle ARADUR 3253-1 according to good industrial hygiene and professional reactive-chemical processing practices.
Avoid ARADUR 3253-1 contact with the eyes, skin, clothing, food, drink, acids, oxidizing agents, and incompatible reactive materials.

Ventilation

Provide effective general ventilation and local exhaust wherever ARADUR 3253-1 is poured, transferred, mixed, heated, or sprayed.
Use suitable respiratory protection when engineering controls cannot adequately control ARADUR 3253-1 vapor, mist, aerosol, or fumes.

Storage

Store ARADUR 3253-1 in tightly closed and chemically compatible containers within a dry area maintained between 2°C and 40°C.
Protect ARADUR 3253-1 from direct sunlight, excessive heat, moisture, contamination, acids, oxidizing agents, and unintended contact with epoxy resin.

Spill and Leak Procedures

Contain spilled ARADUR 3253-1 with a suitable inert and non-combustible absorbent while maintaining adequate ventilation.
Prevent ARADUR 3253-1 from entering drains, soil, or surface water and transfer recovered waste into properly labeled disposal containers.

Handling Precautions

Wear chemical-resistant gloves, protective clothing, and tightly fitting eye or face protection while handling ARADUR 3253-1.
Review the current regional Safety Data Sheet before storing, mixing, transporting, processing, or disposing of ARADUR 3253-1.