Item Name: Araldite® FST 40004 / Araldite® FST 40005
Manufacturer: Huntsman Advanced Materials
Technologies: Epoxy thermoset, halogen-free, unfilled, RTM/infusion/pultrusion, FST compliant
Color: Clear liquid
Cure Type: Thermal cure, fast in-mould (~5 min at 150 °C), post-cure possible
Package Size: 25 kg drum (Contact to Techniq VN for details)
Shelf Life: 24 month
1. Product Overview
Araldite® FST 40004 / 40005 is a halogen-free, unfilled epoxy thermoset resin system developed by Huntsman Advanced Materials. Designed for direct liquid composite molding processes such as Resin Transfer Molding (RTM), infusion, and pultrusion, this system offers a unique combination of mechanical performance and fire resistance properties. It is particularly suitable for applications in interior aerospace and industrial composites where stringent fire, smoke, and toxicity (FST) standards are required.
2. Applications
Interior aerospace composite parts
Industrial composites requiring FST compliance
Structural components in railway applications
Battery housings in electric vehicles
High-performance parts in automotive and marine industries
3. Typical Properties
| Property | Value |
|---|---|
| Viscosity | 300–450 mPa·s |
| Glass Transition Temp | 265–275°C |
| Cure Time (RTM) | ~5 min at 150°C |
| UL 94 Rating (GFRP) | V0 (2 mm thickness) |
| UL 94 Rating (CFRP) | V1 (2 mm thickness) |
| Tensile Strength | 85–90 MPa |
| Tensile Modulus | 2,900–3,100 MPa |
| Tensile Elongation | 3–4% |
| Halogen-Free | Yes |
| Filler-Free | Yes |
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