• Item Name: Araldite® FST 40020 / Araldite® FST 40021
• Manufacturer: Huntsman Advanced Materials
• Technologies: Fire-resistant epoxy resin system with UL94 V0 rating, fast cure, suitable for HP-RTM and WCM
• Color: Contact to Techniq VN for details.
• Cure Type: Thermoset curing at elevated temperature with rapid in-mold cycle
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
1. Product Overview
Araldite® FST 40020 and Araldite® FST 40021 are advanced, halogen-free, filler-free epoxy resin systems developed by Huntsman Advanced Materials. These systems are engineered to meet stringent fire safety standards, including UL 94 V0 ratings for both glass-fiber-reinforced plastics (GFRP) and carbon-fiber-reinforced plastics (CFRP) at 2 mm thickness. They are specifically designed for high-volume manufacturing processes such as High-Pressure Resin Transfer Molding (HP-RTM) and Wet Compression Molding (WCM), offering rapid curing times of 3 to 5 minutes at 115°C. These characteristics make them particularly suitable for producing large structural components, including battery housings in electric vehicles, where both mechanical performance and fire resistance are critical.
2. Applications
Araldite® FST 40020 and Araldite® FST 40021 are ideal for applications that demand high mechanical strength and stringent fire safety compliance. Their primary uses include:
Manufacturing of structural composite parts for railway and aerospace interiors, where fire, smoke, and toxicity (FST) standards are paramount.
Production of battery housings for electric vehicles, requiring both high mechanical performance and fire resistance.
Applications in industries where compliance with UL 94 V0 ratings for both GFRP and CFRP is essential.
3. Typical Properties
The following table summarizes the typical properties of Araldite® FST 40020 and Araldite® FST 40021:
| Property | Araldite® FST 40020 | Araldite® FST 40021 |
|---|---|---|
| Chemical Family | Epoxy & Epoxy Derivatives | Epoxy & Epoxy Derivatives |
| Viscosity (at 60°C) | < 50 mPas | < 50 mPas |
| Glass Transition Temperature (Tg) | Not specified | Not specified |
| Tensile Strength | Not specified | Not specified |
| UL 94 Rating (GFRP 2 mm) | V0 | V0 |
| UL 94 Rating (CFRP 2 mm) | V0 | V0 |
| Cure Time (at 115°C) | 3 – 5 minutes | 3 – 5 minutes |
| Halogen-Free | Yes | Yes |
| Filler-Free | Yes | Yes |
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