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Low-viscosity liquid polyamide adduct enabling easy handling and efficient mixing with epoxy resins.
Excellent flexibility and impact resistance in cured epoxy systems, even at low temperatures.
Good chemical resistance to water, alkalis, and mild solvents in fully cured coatings and adhesives.
Extended pot life compared to conventional amine curing agents, supporting longer application windows.
Low volatility and reduced skin sensitization potential, contributing to improved workplace safety.
Industrial maintenance coatings for steel structures and offshore platforms.
Concrete floor coatings requiring toughness, flexibility, and moisture tolerance.
Marine antifouling and protective primers for hulls and ballast tanks.
Adhesives and sealants in transportation and wind energy components.
Electrical encapsulation and potting compounds demanding dimensional stability and dielectric performance.
| Chemical Type | Polyamide adduct (epoxy curing agent) |
| Product Form | Liquid |
| Appearance | Ambient-temperature clear to pale amber viscous liquid |
| Primary Applications | Protective coatings, industrial flooring, marine coatings, adhesives |
| Key Features | Low viscosity, flexible cure, extended pot life, low volatility |
| Benefits | Improved application efficiency, enhanced durability under thermal cycling, reduced health hazard profile |
| Recommended Epoxy Equivalent Ratio | 1.0–1.3 equivalents amine hydrogen per epoxy equivalent (EEW-dependent) |
| Storage Conditions | Store in original sealed container at 15–25°C; protect from moisture and freezing |
Q1: What is the primary function of Aradur 955 in epoxy systems?
A: Aradur 955 is a liquid polyamide-based curing agent designed to react with epoxy resins—particularly bisphenol-A and bisphenol-F types—to form crosslinked thermoset networks. It enables ambient- or low-temperature cure, enhances flexibility, improves adhesion to damp or contaminated substrates, and contributes to good chemical resistance in the final coating or adhesive.
Q2: Is Aradur 955 suitable for high-humidity or damp-surface applications?
A: Yes. As a polyamide curing agent, Aradur 955 exhibits relatively low sensitivity to moisture compared to amine-based alternatives, making it well-suited for applications where substrate moisture tolerance is required—such as industrial maintenance coatings, marine primers, and concrete repair systems.
Q3: How does Aradur 955 compare to conventional aliphatic amine curing agents in terms of handling and safety?
A: Aradur 955 has lower volatility and reduced skin sensitization potential than many unmodified aliphatic amines. Its liquid solution format offers easier metering and mixing, and it generally presents milder handling requirements—though appropriate personal protective equipment and ventilation should still be used per standard industrial hygiene practices.
Q4: Can Aradur 955 be used in food-contact or potable water applications?
A: Aradur 955 is not pre-approved for direct food-contact or potable water applications. Formulators intending such use must conduct full regulatory evaluation—including compatibility testing, extraction studies, and compliance verification against applicable regional regulations—as approval depends on the complete cured system, not the curing agent alone.
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