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Aradur 49-1S is formulated to deliver fast cure, excellent adhesion, and superior durability in epoxy systems used for construction and industrial maintenance.
Its combination of rapid reactivity, moisture tolerance, and high mechanical performance makes Aradur 49-1S a preferred curing agent for applications requiring reliable performance under challenging environmental conditions.
Chemical & Physical Profile
Class: Cycloaliphatic polyamineAmine Value: 295 to 325 mg KOH/g
Viscosity (at 25°C): 130 to 230 mPa⋅s
Amine Hydrogen Equivalent Weight (AHEW): 95
Recommended Mix Ratio: Typically around 95 parts by weight per 100 parts of standard liquid epoxy resin (like bisphenol-A).
Properties: The letter "S" designates a special formulated behavior (accelerated or modified for specific substrate wetting/curing speed).
Aradur 49-1S provides excellent chemical resistance, high mechanical strength, and good curing capabilities even at lower temperatures.
ARADUR 49-1S is a modified cycloaliphatic polyamine hardener.
In Huntsman's naming convention for epoxy curing agents, the suffix "S" typically denotes a fast-curing version of the standard base product (Aradur 49).
Synonyms and direct functional equivalents include:
Synonyms / Equivalent Descriptions
ARADUR® 49-1S
Huntsman ARADUR® 49-1S
Modified cycloaliphatic amine curing agent
Modified cycloaliphatic polyamine hardener
Cycloaliphatic epoxy curing agent
Cycloaliphatic epoxy hardener
Epoxy resin curing agent
Epoxy hardener
Formulated amine curing agent
Fast-curing cycloaliphatic amine hardener
Reactive amine hardener
Two-component epoxy curing agent
Liquid epoxy curing agent
Aradur 49-1S is a cyclocyclic polyamine-based hardener manufactured, designed primarily for formulating solvent-free epoxy systems.
Aradur 49-1S is highly favored in civil engineering, industrial flooring, and heavy-duty protective coatings due to its excellent surface aesthetic properties.
Aradur 49-1S is a modified cycloaliphatic amine curing agent developed for use with liquid epoxy resin systems.
Aradur 49-1S is designed to provide rapid curing at ambient and low temperatures, making ARADUR 49-1S suitable for demanding construction, protective coating, and industrial applications.
Aradur 49-1S offers an excellent balance of reactivity, mechanical performance, and chemical resistance.
Aradur 49-1S is designed to provide rapid curing, excellent adhesion, and outstanding mechanical performance under both ambient and low-temperature conditions.
The formulation offers low viscosity, making Aradur 49-1S easy to process in solvent-free and high-solid epoxy systems.
ARADUR 49-1S is particularly suitable for civil engineering, industrial flooring, protective coatings, concrete repair mortars, injection resins, grouting systems, and structural adhesives.
When combined with epoxy resins, Aradur 49-1S produces durable thermoset materials with excellent chemical resistance, water resistance, abrasion resistance, and long-term durability.
Its balanced curing speed and reliable performance make Aradur 49-1S an ideal hardener for demanding industrial and construction applications.
The "S" designation in the ARADUR® product range indicates a fast-curing version of the standard hardener.
Key Features
Appearance: Clear, low-viscosity liquid that provides highly glossy, blush-free surfaces even under high humidity.
Chemical Profile: ARADUR 49-1S features an amine value of approximately 295–325 mg KOH/g and a viscosity of 50–110 mPa·s at 25°C.
Performance: Delivers excellent chemical resistance, great mechanical strength, and superb adhesion to various substrates.
Main Applications
Industrial Flooring: Self-leveling floors, screeds, and primers.
Marine & Protective Coatings: High-solid or solvent-free anti-corrosion paints.
Civil Engineering: Injection resins, grouts, and structural adhesives.
Uses
ARADUR 49-1S is a modified cycloaliphatic polyamine curing agent designed for liquid epoxy resin systems.
ARADUR 49-1S is used in applications that require fast curing, excellent adhesion, and high mechanical and chemical resistance.
Typical Uses
Industrial epoxy floor coatings
Self-leveling epoxy flooring systems
Epoxy primers and topcoats
Anti-corrosion protective coatings
Concrete repair mortars
Crack injection and structural injection resins
Civil engineering and infrastructure projects
Structural adhesives
Heavy-duty maintenance coatings
Marine and offshore protective coatings
Metal protective coatings
Chemical-resistant linings
Grouts and anchoring systems
Solvent-free and high-solid epoxy formulations
Industries
Construction
Civil engineering
Industrial maintenance
Marine
Transportation
Manufacturing
Oil & gas
Water and wastewater infrastructure
Benefits in These Applications
Fast curing at ambient and low temperatures
Excellent adhesion to concrete, steel, and mineral substrates
High compressive and tensile strength
Outstanding resistance to water, chemicals, oils, and fuels
Good abrasion and impact resistance
Low viscosity for easy processing and mixing
Long-lasting durability in demanding environments
Suitable for two-component epoxy systems with liquid epoxy resins
Key Features
Modified cycloaliphatic amine epoxy curing agent.
Fast curing at room temperature and under low-temperature conditions.
Low viscosity for easy mixing and application.
Excellent adhesion to concrete, steel, and mineral substrates.
High mechanical strength and toughness.
Outstanding chemical, water, and abrasion resistance.
Good resistance to moisture during curing.
Suitable for solvent-free and high-solid epoxy formulations.
Produces durable, high-performance epoxy systems.
Typical Applications
Aradur 49-1S is recommended for:
Industrial flooring systems
Self-leveling epoxy floors
Civil engineering and construction
Concrete repair mortars
Crack injection and structural grouting
Protective coatings
Heavy-duty maintenance coatings
Adhesives and structural bonding
Marine and infrastructure applications
Typical Benefits
Rapid development of mechanical properties.
Good workability with liquid epoxy resins.
Reliable curing in cool or humid environments.
Excellent long-term durability.
High compressive and flexural strength.
Superior resistance to chemicals, oils, fuels, and water.
Excellent bond strength to concrete and steel.
Key Application Areas
Solvent-Free Coatings: Ideal for zero-VOC, high-build protective coatings.
Flooring & Civil Engineering: Used in concrete primers, mortars, and seamless industrial flooring.
Adhesives & Composites: Provides high-strength bonding for metal, wood, and mineral substrates.
Compatibility
Aradur® 49-1S is typically used with liquid epoxy resins, including bisphenol A and bisphenol F epoxy resins, to formulate:
Solvent-free epoxy coatings
Epoxy primers
Flooring compounds
Injection resins
Repair mortars
Structural adhesives
