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Low-viscosity liquid polyamide offering excellent compatibility with standard epoxy resins.
Enables room-temperature cure with good mechanical properties and chemical resistance.
Provides extended pot life for improved processing flexibility in coating and adhesive applications.
Delivers balanced toughness, adhesion, and flexibility in cured epoxy systems.
Formulated for low odor and reduced amine blush compared to conventional polyamide hardeners.
Industrial protective coatings for steel and concrete substrates.
Structural adhesives in transportation and general assembly.
Flooring systems including self-leveling and mortar-based epoxy floors.
Electrical encapsulation and potting compounds requiring thermal stability.
Repair mortars and grouts for civil engineering infrastructure.
| Chemical Type | Polyamide adduct (modified aliphatic) |
| Product Form | Low-viscosity liquid |
| Appearance | Amber to light brown transparent liquid |
| Primary Applications | Epoxy coatings, adhesives, mortars, and flooring systems |
| Key Features | Room-temperature cure, low odor, low blush tendency |
| Benefits | Extended working time, good flexibility, strong substrate adhesion |
| Recommended Epoxy Equivalent Weight Ratio | 1.0–1.3:1 (Aradur 450S : DGEBA resin) |
| Storage Conditions | Store in original sealed container at 15–25°C; protect from moisture |
Q1: What is the primary application of Aradur 450S?
A: Aradur 450S is a polyamide-based curing agent designed for use with epoxy resins in high-performance protective coatings, including industrial maintenance, marine, and infrastructure applications where flexibility, chemical resistance, and adhesion to damp or marginally prepared substrates are required.
Q2: How does Aradur 450S perform under humid or low-temperature conditions?
A: As a modified polyamide, Aradur 450S offers improved moisture tolerance compared to standard aliphatic amines, enabling more reliable cure development in elevated humidity and at reduced ambient temperatures—typically down to approximately 10°C—without requiring forced drying or extensive surface preparation.
Q3: Is Aradur 450S compatible with common epoxy resins?
A: Yes, Aradur 450S is broadly compatible with liquid bisphenol-A and bisphenol-F epoxy resins, as well as many solid and novolac epoxies. Compatibility and final film properties should be verified through small-scale formulation trials due to variations in resin functionality and molecular weight.
Q4: What safety and handling considerations apply to Aradur 450S?
A: Aradur 450S is classified as an irritant and may cause skin and eye irritation. Users should wear appropriate personal protective equipment—including nitrile gloves, safety goggles, and respiratory protection when aerosols or mists are generated—and ensure adequate ventilation during handling and mixing. Refer to the current Safety Data Sheet (SDS) for full hazard information and first-aid measures.
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E-mail: wangxingqiang@ericwchem.com
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