ARADUR 51

ARADUR 51 is typically applied in flooring systems, protective coatings, adhesives, and construction-grade epoxy mortars where durable performance and reliable curing are required.
ARADUR 51 contains reactive amine hydrogen groups that chemically interact with epoxide rings in epoxy resins through a polyaddition reaction, forming a durable, three-dimensional crosslinked thermoset polymer network.
ARADUR 51 is widely applied in heavy-duty industrial flooring, including self-leveling and high-build floor coatings for warehouses, production areas, and parking structures.

Synonyms: Aradur 51 Amine Curing Agent, Huntsman Aradur 51, Polyamine Hardener Type 51, Epoxy Resin Hardener 51, Amine-Based Hardener 51, Aradur 51 Curing Component, Aradur 51 Epoxy Crosslinker, ARADUR® 51 Hardener, Aradur 51 Polyamine Curing Agent, Aradur 51 Epoxy Hardener

ARADUR 51 is a modified amine curing agent formulated for use in liquid epoxy resin systems, particularly in construction and industrial-grade applications.
ARADUR 51 is designed to provide reliable ambient-temperature curing with balanced reactivity and practical working time.
ARADUR 51 contains reactive amine hydrogen groups that chemically interact with epoxide rings in epoxy resins through a polyaddition reaction, forming a durable, three-dimensional crosslinked thermoset polymer network.

Epoxy systems cured with ARADUR 51 typically exhibit strong adhesion to concrete, steel, and mineral substrates, along with good mechanical strength, abrasion resistance, and chemical durability.
ARADUR 51's formulation allows effective performance in solvent-free and high-build systems, making it suitable for heavy-duty flooring, protective maintenance coatings, repair mortars, grouting compounds, and structural bonding applications.
The cured materials offer stable performance under mechanical stress and exposure to industrial environments, supporting long-term durability in civil engineering and infrastructure projects.

ARADUR 51 is a polyamine grade.
ARADUR 51 acts as a curing agent.

ARADUR 51 is recommended for civil engineering coatings applications.
ARADUR 51 complies with the REACH regulation.

ARADUR 51 is a modified amine-based curing agent for use with liquid epoxy resin systems.
ARADUR 51 is designed for ambient-temperature curing and is commonly used in solvent-free and high-build epoxy formulations.

ARADUR 51 reacts with epoxy groups through a polyaddition mechanism, forming a crosslinked thermoset network that provides good mechanical strength, chemical resistance, and adhesion to mineral and metallic substrates.
ARADUR 51 is typically applied in flooring systems, protective coatings, adhesives, and construction-grade epoxy mortars where durable performance and reliable curing are required.

Applications of ARADUR 51:
ARADUR 51 is used as a curing agent for liquid epoxy resins in ambient-temperature systems.
ARADUR 51 is widely applied in heavy-duty industrial flooring, including self-leveling and high-build floor coatings for warehouses, production areas, and parking structures.

ARADUR 51 is also used in protective maintenance coatings for concrete and steel, epoxy mortars and repair compounds, anchoring and grouting systems, casting applications, and structural adhesives.
Additionally, ARADUR 51 is suitable for civil engineering and infrastructure projects requiring durable, mechanically resistant, and chemically stable epoxy systems.

Advantages of ARADUR 51:
ARADUR 51 provides efficient ambient-temperature curing without the need for external heat.
ARADUR 51 offers balanced reactivity, ensuring practical working time and reliable crosslinking.

ARADUR 51 delivers strong adhesion to concrete, steel, and mineral substrates.
ARADUR 51 improves mechanical strength, including hardness and abrasion resistance.

ARADUR 51 enhances chemical resistance against oils, fuels, and industrial chemicals.
ARADUR 51 supports durable performance in heavy-duty flooring and protective coating systems.

Stability and Reactivity of ARADUR 51:

Chemical stability:
Stable under normal storage conditions.

Reactivity:
Reacts exothermically with epoxy resins during curing.

Conditions to avoid:
Heat, moisture, and contamination.

Incompatible materials:
Strong acids and strong oxidizing agents.

Hazardous decomposition products:
Carbon oxides (CO, CO₂) and nitrogen oxides (NOx) in fire.

Handling and Storage of ARADUR 51:

Handling:
Avoid skin and eye contact.
Ensure adequate ventilation.

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

Storage conditions:
Protect from heat sources and moisture.

First Aid Measures of ARADUR 51:

Inhalation:
Move to fresh air.
Seek medical attention if symptoms persist.

Skin contact:
Wash thoroughly with soap and water.
Remove contaminated clothing.

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

Ingestion:
Rinse mouth.
Do not induce vomiting.
Seek medical advice.

Most important symptoms:
May cause irritation or sensitization.

Firefighting Measures of ARADUR 51:

Suitable extinguishing media:
Water spray, foam, dry chemical, or CO₂.

Specific hazards:
Combustible.
May release toxic fumes when burning.

Protective equipment for firefighters:
Self-contained breathing apparatus and protective clothing.

Accidental Release Measures of ARADUR 51:

Personal precautions:
Wear appropriate PPE.
Ensure ventilation.

Environmental precautions:
Prevent entry into drains and waterways.

Methods for cleanup:
Absorb with inert material.
Dispose according to regulations.

Exposure Controls / Personal Protection of ARADUR 51:

Occupational exposure limits:
Not specifically established.

Engineering controls:
Provide adequate ventilation.

Respiratory protection:
Use if vapors or mists are present.

Hand protection:
Chemical-resistant gloves.

Eye protection:
Safety goggles or face shield.

Hygiene measures:
Wash hands after handling.
Avoid eating or drinking in work areas.

Identifiers of ARADUR 51:
Product Type: Modified amine curing agent
Chemical Family: Epoxy hardener
CAS Number: Mixture
EC Number: Not specifically assigned
Physical State: Liquid
Appearance: Clear to slightly yellow
Function: Crosslinking agent for epoxy resins

Properties of ARADUR 51:
Odor: Amine-like
Density 25°C: Approx. 0.95–1.05 g/cm³
Viscosity 25°C: Low to medium
Solubility: Partially soluble in water
Reactivity: Reacts exothermically with epoxides
Curing Behavior: Ambient temperature curing
Flash Point: >100 °C
Physical State: Liquid
Appearance: Clear to pale yellow