ARADUR 3243-1

ARADUR 3243-1 is a low-viscosity modified cycloaliphatic polyamine curing agent developed for use with compatible liquid epoxy resins.

ARADUR 3243-1 provides a practical balance of workable processing viscosity, extended working time, curing performance, mechanical strength, and chemical resistance.

ARADUR 3243-1 is particularly suitable for solvent-free flooring systems, epoxy resin mortars, and protective anti-corrosion coatings.

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 modified polyamine mixture

Molecular Weight: Not applicable to a formulated modified polyamine mixture

SYNONYMS

ARADUR 3243-1, ARADUR-3243-1, ARADUR3243-1, 3243-1 Epoxy Hardener, 3243-1 Epoxy Curing Agent, Modified Cycloaliphatic Polyamine Hardener, Modified Cycloaliphatic Polyamine Curing Agent, Low-Viscosity Cycloaliphatic Polyamine, Low-Viscosity Epoxy Hardener, Low-Viscosity Epoxy Curing Agent, Liquid Epoxy Hardener, Liquid Polyamine Hardener, Liquid Polyamine Curing Agent, Cycloaliphatic Amine Epoxy Hardener, Cycloaliphatic Amine Curing Agent, Cycloaliphatic Polyamine Epoxy Hardener, Epoxy Resin Polyamine Hardener, Epoxy Crosslinking Agent, 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, Self-Leveling Flooring Hardener, Epoxy Mortar Hardener, Epoxy Screed Hardener, Resin Mortar Curing Agent, Anti-Corrosion Epoxy Hardener, Protective Coating Hardener, High-Gloss Epoxy Hardener, Light-Color Epoxy Hardener, Chemical-Resistant Epoxy Hardener, Long-Pot-Life Epoxy Hardener, Extended-Working-Time Hardener, Low-Yellowing Epoxy Hardener, Smooth-Finish Epoxy Curing Agent, Low-Water-Spotting Epoxy Hardener, Nonylphenol-Free Epoxy Hardener, Polyamine Epoxy Crosslinker, Reactive Amine Hardener, Amine-Functional Epoxy Hardener, Industrial Epoxy Curing Agent, Construction Epoxy Hardener, Concrete Flooring Hardener, Mineral-Substrate Epoxy Hardener, Epoxy Coating Curing Component, Epoxy Binder Hardener

APPLICATIONS

ARADUR 3243-1 serves as a curing agent in solvent-free epoxy flooring systems applied to concrete and other properly prepared mineral substrates.
ARADUR 3243-1 supports the formation of hard, continuous flooring surfaces after reaction with a compatible epoxy resin.

ARADUR 3243-1 functions in self-leveling epoxy floors requiring low application viscosity and controlled flow.
ARADUR 3243-1 helps the mixed system spread across the substrate while retaining sufficient working time for application and finishing.

ARADUR 3243-1 contributes to epoxy resin mortars containing graded silica, mineral aggregate, fillers, and compatible liquid epoxy resin.
ARADUR 3243-1 develops the crosslinked binder that holds the mineral components together after curing.

ARADUR 3243-1 supports solvent-free anti-corrosion coatings developed for prepared metal surfaces.
ARADUR 3243-1 contributes chemical resistance, surface smoothness, gloss, and mechanical performance in appropriately formulated protective systems.

ARADUR 3243-1 serves as the reactive hardener component in two-component epoxy coating systems.
ARADUR 3243-1 reacts with epoxy groups to create a three-dimensional thermoset polymer network.

ARADUR 3243-1 supports industrial floor coatings requiring resistance to abrasion, traffic, cleaning chemicals, and routine mechanical stress.
ARADUR 3243-1 performance must be confirmed against the exact chemicals, temperatures, loads, and exposure periods expected in service.

ARADUR 3243-1 contributes to warehouse flooring systems designed for smooth application and durable service.
ARADUR 3243-1 allows the mixed epoxy system to remain workable during spreading, leveling, and removal of entrapped air.

ARADUR 3243-1 functions in workshop and production-area floors requiring a dense and readily cleanable finish.
ARADUR 3243-1 helps produce a continuous surface when substrate preparation, resin ratio, film thickness, and curing conditions are properly controlled.

ARADUR 3243-1 supports laboratory and utility-room flooring formulations requiring chemical and mechanical resistance.
ARADUR 3243-1 must be tested against the specific acids, alkalis, solvents, disinfectants, and cleaning agents involved.

ARADUR 3243-1 contributes to light-colored epoxy floor coatings where color retention and reduced yellowing are important.
ARADUR 3243-1 supports light-colored cured films when pigments, fillers, resin components, and exposure conditions are compatible.

ARADUR 3243-1 functions in high-gloss floor coatings requiring a smooth and uniform finished surface.
ARADUR 3243-1 helps limit surface irregularity when mixing, application, deaeration, and ambient conditions are carefully managed.

ARADUR 3243-1 supports epoxy flooring formulations designed to resist water spotting during early and final service.
ARADUR 3243-1 cannot independently prevent surface defects when moisture, condensation, contamination, or unsuitable curing conditions are present.

ARADUR 3243-1 contributes to broadcast flooring systems in which mineral aggregate is distributed over a wet epoxy layer.
ARADUR 3243-1 provides the reactive matrix needed to anchor the aggregate after the excess material is removed.

ARADUR 3243-1 functions in epoxy screeds used to produce thicker protective and load-distributing floor layers.
ARADUR 3243-1 allows high filler or aggregate loading when wetting, mixing power, application temperature, and resin content are optimized.

ARADUR 3243-1 supports coving compounds applied at wall-to-floor transitions in industrial facilities.
ARADUR 3243-1 helps the filled epoxy mixture retain sufficient body while still allowing shaping and finishing.

ARADUR 3243-1 contributes to patching and repair mortars for localized defects in compatible concrete substrates.
ARADUR 3243-1 requires dry, clean, mechanically sound surfaces and an appropriate primer or bonding layer where necessary.

ARADUR 3243-1 functions in epoxy grouts and gap-filling compounds after formulation-specific evaluation.
ARADUR 3243-1 can support mineral-filled systems requiring controlled flow, adhesion, curing, and mechanical strength.

ARADUR 3243-1 supports protective primers developed for prepared steel or mineral surfaces when the complete formulation is compatible.
ARADUR 3243-1 can contribute adhesion and crosslink density while pigments and fillers provide additional barrier or corrosion-control functions.

ARADUR 3243-1 contributes to intermediate epoxy coating layers used to build total protective film thickness.
ARADUR 3243-1 helps form a cohesive coating layer when overcoating intervals and surface conditions are properly controlled.

ARADUR 3243-1 functions in epoxy topcoats intended for indoor or protected industrial environments.
ARADUR 3243-1 supports gloss and surface smoothness while long-term appearance remains dependent on ultraviolet exposure and formulation design.

ARADUR 3243-1 can be evaluated in protective coatings for machinery bases, structural components, and industrial equipment.
ARADUR 3243-1 suitability depends on substrate condition, service temperature, chemical exposure, impact, vibration, and required coating thickness.

ARADUR 3243-1 supports filled coating formulations containing silica flour, quartz, calcium carbonate, pigments, or functional mineral fillers.
ARADUR 3243-1 requires sufficient mixing to achieve uniform filler wetting without introducing excessive air.

ARADUR 3243-1 contributes to slip-resistant flooring systems containing selected aggregate or textured finishing materials.
ARADUR 3243-1 helps bind the aggregate while the final surface profile determines cleanability and slip resistance.

ARADUR 3243-1 functions in decorative epoxy floors containing colored quartz, flakes, pigments, or other compatible decorative components.
ARADUR 3243-1 supports a clear or lightly colored binder system when color, clarity, filler wetting, and curing are appropriately controlled.

ARADUR 3243-1 supports epoxy formulations requiring an extended application period relative to faster-reacting amine systems.
ARADUR 3243-1 provides a representative gel time of approximately 60 minutes at 23°C in the specified reference formulation.

ARADUR 3243-1 contributes to larger flooring applications where mixing, transport, pouring, spreading, and deaeration require adequate working time.
ARADUR 3243-1 pot life remains dependent on batch size, resin chemistry, starting temperature, filler loading, and ambient conditions.

DESCRIPTION

ARADUR 3243-1 is a modified cycloaliphatic polyamine mixture formulated as a reactive epoxy curing agent.
ARADUR 3243-1 belongs to the polyamine chemical family and is supplied as a liquid hardener.

ARADUR 3243-1 is not a single chemically pure molecule with one fixed molecular structure.
ARADUR 3243-1 therefore does not have one complete-substance molecular formula, molecular weight, CAS number, or EC number.

ARADUR 3243-1 normally appears as a clear, light-yellow liquid with a characteristic amine odor.
ARADUR 3243-1 has a low viscosity that supports weighing, pumping, blending, filler incorporation, and coating application.

ARADUR 3243-1 has a specified viscosity range of 220–360 mPa·s at 25°C.
ARADUR 3243-1 has a reported density of approximately 1.01 g/cm³ at 20°C.

ARADUR 3243-1 has an amine value of approximately 280–360 mg KOH/g.
ARADUR 3243-1 amine value provides a useful quality-control indicator but does not replace stoichiometric formulation calculations.

ARADUR 3243-1 contains reactive amine hydrogen groups capable of opening epoxy rings.
ARADUR 3243-1 curing gradually transforms the liquid resin-hardener mixture into an insoluble and infusible thermoset network.

ARADUR 3243-1 reaction speed is influenced by resin type, mixing ratio, temperature, batch mass, fillers, and additives.
ARADUR 3243-1 cures more rapidly as formulation temperature or mixed mass increases because epoxy-amine curing is exothermic.

ARADUR 3243-1 provides relatively long working time compared with many rapid-curing amine hardeners.
ARADUR 3243-1 supports processing operations that require sufficient time for mixing, spreading, leveling, aggregate addition, and finishing.

ARADUR 3243-1 develops good mechanical properties after complete reaction with a suitable epoxy resin.
ARADUR 3243-1 final hardness, strength, adhesion, and flexibility remain dependent on the complete resin and filler system.

ARADUR 3243-1 contributes broad chemical resistance in properly formulated and fully cured epoxy systems.
ARADUR 3243-1 chemical resistance must be established through immersion, spot, or service-simulation testing for the intended environment.

ARADUR 3243-1 supports smooth and glossy cured surfaces with relatively low water-spotting tendency.
ARADUR 3243-1 surface quality can still be impaired by moisture, condensation, low temperature, poor mixing, contamination, or incorrect stoichiometry.

ARADUR 3243-1 is formulated without nonylphenol.
ARADUR 3243-1 has a flash point of at least 110°C under the reported closed-cup test conditions.

ARADUR 3243-1 should be stored between 2°C and 40°C in a dry area protected from direct sunlight.
ARADUR 3243-1 has a documented shelf life of at least one year when stored under the stated conditions in sealed packaging.

PROPERTIES

Chemical Class: Modified Cycloaliphatic Polyamine

Primary Function: Epoxy Curing Agent and Hardener

Physical Form: Liquid

Appearance: Clear, Light-Yellow Liquid

Odor: Characteristic Amine Odor

Viscosity at 25°C: 220–360 mPa·s

Density at 20°C: Approximately 1.01 g/cm³

Amine Value: 280–360 mg KOH/g

Flash Point: Minimum 110°C

Representative Gel Time: Approximately 60 Minutes at 23°C in the Specified Reference System

Typical Mixing Ratio: Approximately 100 Parts Compatible Liquid Epoxy Resin to 50 Parts ARADUR 3243-1 by Weight in the Referenced Systems

Main Uses: Solvent-Free Floorings, Epoxy Mortars, and Anti-Corrosion Coatings

Key Features: Low Viscosity, Long Working Time, Good Chemical Resistance, High Gloss, and Smooth Surface Development

Storage Temperature: 2–40°C

Shelf Life: At Least One Year under the Stated Storage Conditions

FIRST AID

Inhalation

Move the person exposed to ARADUR 3243-1 vapor, mist, or heated fumes into fresh air and keep the person comfortable.
Obtain immediate medical attention if ARADUR 3243-1 exposure causes coughing, respiratory irritation, dizziness, wheezing, or breathing difficulty.

Skin Contact

Remove clothing contaminated with ARADUR 3243-1 and wash the affected skin immediately with plenty of water and soap.
Obtain medical attention if ARADUR 3243-1 causes persistent irritation, pain, redness, blistering, or an allergic skin response.

Eye Contact

Immediately rinse eyes exposed to ARADUR 3243-1 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 medical attention after ARADUR 3243-1 eye exposure.

Ingestion

Rinse the mouth after accidental ingestion of ARADUR 3243-1 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 3243-1.

Note to Physicians

Treat ARADUR 3243-1 exposure symptomatically and provide appropriate supportive care.
Assess ARADUR 3243-1 exposure according to the quantity, route, symptoms, accompanying epoxy components, and current safety documentation.

HANDLING AND STORAGE

Handling

Handle ARADUR 3243-1 using closed processing methods and good industrial hygiene practices wherever practical.
Avoid ARADUR 3243-1 contact with the eyes, skin, clothing, food, drink, and incompatible reactive chemicals.

Ventilation

Provide effective general ventilation and local exhaust where ARADUR 3243-1 is poured, mixed, heated, sprayed, or transferred.
Use suitable respiratory protection when engineering controls cannot adequately control ARADUR 3243-1 vapor, mist, or aerosol.

Storage

Store ARADUR 3243-1 in tightly closed and chemically compatible containers within a dry area maintained between 2°C and 40°C.
Protect ARADUR 3243-1 from direct sunlight, excessive heat, moisture, contamination, acids, oxidizing agents, and unintended contact with epoxy resins.

Spill and Leak Procedures

Contain spilled ARADUR 3243-1 with a suitable inert absorbent and provide adequate ventilation during cleanup.
Prevent ARADUR 3243-1 from entering drains, soil, or surface water and transfer collected waste into correctly labeled disposal containers.

Handling Precautions

Wear chemical-resistant gloves, protective clothing, and tightly fitting eye or face protection while handling ARADUR 3243-1.
Review the current region-specific Safety Data Sheet before storing, mixing, transporting, or disposing of ARADUR 3243-1.