ARADUR 3123

ARADUR 3123 is an amine-based curing agent designed for epoxy resin systems.
ARADUR 3123 provides reliable curing at ambient conditions with good processing characteristics.
ARADUR 3123 enhances mechanical strength, adhesion, and chemical resistance in final applications.

Synonyms: Epoxy curing agent, Amine hardener, Epoxy hardener, Polyamine curing agent, Modified amine hardener, Epoxy crosslinking agent, Reactive curing agent, Liquid epoxy hardener, Industrial epoxy hardener, Ambient cure curing agent, Epoxy resin crosslinker, Amine-based curing agent, Thermoset hardener, Coating curing agent, Adhesive curing agent

ARADUR 3123 is a substituted imidazole that may be used either as a latent catalytic curing agent for liquid epoxy resins or as a latent ACCELERATOR for anhydride- and amine-cured epoxy resins.
ARADUR 3123 is a substitute imidazole that may be used either as a latent catalytic curing agent for liquid epoxy resins or as a latent accelerator for anhydride and amine cured epoxy

ARADUR 3123 is a modified amine-based curing agent developed for epoxy resin systems, providing efficient crosslinking under ambient conditions.
ARADUR 3123 is designed to deliver a balanced curing profile with adequate pot life and reliable hardening performance.

ARADUR 3123 contributes to coatings and adhesive systems by enhancing adhesion, mechanical strength, and chemical resistance.
ARADUR 3123's liquid form allows easy processing and homogeneous mixing, making it suitable for industrial coatings, flooring systems, and composite applications.

Uses of ARADUR 3123:
ARADUR 3123 is widely used as a curing agent in epoxy coatings, adhesives, and casting systems.
ARADUR 3123 is particularly suitable for protective coatings, industrial flooring, and structural bonding where consistent curing and durability are required.

Advantages of ARADUR 3123:
Good latency at room temperature
Highly reactive at temperatures above 120°C
Snap cure properties
Dispersible in liquid epoxy resins and hardeners
Low toxicity imidazole based accelerator. Low solubility in epoxy resins at room temperature. Outstanding latency vs. standard imidazole.
Recommended as latent catalytic curing agent for liquid epoxy resins or as latent accelerator for anhydride or amine cured epoxy resins

Formulating of ARADUR 3123:
The amount of ARADUR 3123 used in any formulation will depend on the resin and hardener used and the reactivity required.
In general, when ARADUR 3123 is used as a catalytic curing agent, 4 to 10 phr will suffice.
When used as an accelerator for anhydride cured systems, concentration of 2 to 4 phr of ARADUR 3123 is usually sufficient.

Stability and Reactivity of ARADUR 3123:

Chemical stability:
Stable under recommended storage conditions.

Reactivity:
Reacts exothermically with epoxy resins.

Conditions to avoid:
Excessive heat.
Moisture.
Contamination.

Incompatible materials:
Strong oxidizing agents.
Acids.

Hazardous decomposition products:
Carbon monoxide (CO).
Carbon dioxide (CO₂).
Nitrogen oxides (NOx) under fire conditions.

Handling and Storage of ARADUR 3123:

Handling:
Avoid contact with skin and eyes.
Ensure adequate ventilation.

Storage:
Store in tightly closed containers in a cool, dry, well-ventilated area.

Temperature:
Recommended 15–30°C.

Precautions:
Keep away from moisture.
Incompatible substances.

First Aid Measures of ARADUR 3123:

Inhalation:
Move to fresh air.
Seek medical attention if necessary.

Skin contact:
Wash with soap and water.

Eye contact:
Rinse with water for at least 15 minutes.
Seek medical attention.

Ingestion:
Do not induce vomiting.
Seek immediate medical help.

Firefighting Measures of ARADUR 3123:

Extinguishing media:
Foam.
Dry chemical.
CO₂.
Water spray.

Hazards:
Toxic fumes may form during combustion.

Protection:
Use self-contained breathing apparatus (SCBA).

Accidental Release Measures of ARADUR 3123:

Containment:
Absorb with inert material.

Cleanup:
Dispose of in accordance with regulations.

Precautions:
Prevent release into the environment.

Exposure Controls / Personal Protective of ARADUR 3123:

Respiratory protection:
Use mask if ventilation is insufficient.

Hand protection:
Chemical-resistant gloves.

Eye protection:
Safety goggles.

Skin protection:
Protective clothing.

Hygiene measures:
Wash hands after handling.

Identifiers of ARADUR 3123:
Product name: ARADUR 3123
Type: Epoxy curing agent
Chemical family: Modified polyamine hardener
CAS number: Mixture
EC number: Mixture

Appearance: Amber to white powder
Color: White
Material Compatibility: Epoxy (EP) Polymers
Odor: Slight
Physical Form: Powder, Solid
Processing & Application Methods: Molding

Properties of ARADUR 3123:
Appearance: Pale yellow to amber liquid
Odor: Characteristic amine odor
Viscosity: Low to medium viscosity
Solubility: Partially soluble in water, compatible with organic solvents

Gel Time: 1.0-5.0 m at 23°C
Melting Point: 207.0 °C