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Low-viscosity liquid polyamide solution enabling easy handling and uniform mixing with epoxy resins.
Excellent flexibility and impact resistance in cured epoxy systems, even at low temperatures.
Good chemical resistance to alkalis, solvents, and mild acids in protective coating formulations.
Reduced amine blush tendency compared to conventional polyamide curing agents.
Compatible with standard bisphenol-A and bisphenol-F epoxy resins for ambient-cure applications.
Industrial maintenance coatings for steel structures and pipelines.
Concrete floor coatings requiring abrasion resistance and chemical durability.
Marine anti-corrosive primers and topcoats for offshore and shipyard use.
Electrical insulation systems in transformers and cast components.
Adhesives and potting compounds for electrical and electronic assemblies.
| Chemical Type | Polyamide adduct solution |
| Product Form | Liquid |
| Appearance | Amber to brown transparent liquid |
| Primary Applications | Ambient-cure epoxy coatings, adhesives, and potting compounds |
| Key Features | Low viscosity, flexible cure, reduced amine blush |
| Benefits | Improved workability, enhanced toughness, reliable performance in humid conditions |
| Storage Stability | At least 12 months in original sealed container at 20–25 °C |
| Recommended Mix Ratio (by weight) | Typically 100 parts epoxy resin : 35–50 parts Aradur 450 |
Q1: What is the primary function of Aradur 450 in epoxy systems?
A: Aradur 450 is a liquid polyamide-based curing agent solution designed to react with epoxy resins—particularly bisphenol-A and bisphenol-F types—to form crosslinked thermoset networks. It provides good flexibility, adhesion, and chemical resistance at ambient or moderately elevated cure temperatures.
Q2: Is Aradur 450 suitable for high-humidity or damp-surface applications?
A: Yes—Aradur 450 exhibits relatively good moisture tolerance compared to many amine-based hardeners, making it well-suited for coatings and repair mortars applied in humid environments or on slightly damp substrates, though surface preparation and ambient conditions should still be controlled per best practice.
Q3: How does the viscosity of Aradur 450 affect its handling and formulation compatibility?
A: As a low-viscosity liquid solution, Aradur 450 offers excellent mixability with common epoxy resins and facilitates uniform dispersion without requiring high-shear mixing. Its fluid character supports easy incorporation into solvent-free, high-solids, and pigmented systems, including those used in industrial maintenance coatings and flooring applications.
Q4: Can Aradur 450 be used in food-contact or potable water applications?
A: Aradur 450 is not pre-qualified for direct food-contact or potable water use. Formulators intending such applications must conduct full regulatory evaluation—including migration testing and compliance verification—based on the final cured system and applicable regional requirements.
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