• Item Name: Araldite® LY 3569 / Aradur® 1571 / Accelerator 1573 / Aradur® 1575
• Manufacturer: Huntsman Advanced Materials
• Technologies: Low-viscosity epoxy infusion system with anhydride hardeners and accelerator, optimized for vacuum infusion of large parts
• Color: Contact to Techniq VN for details.
• Cure Type: Thermoset curing at elevated temperature with long processing window and controlled reactivity
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
1. Product Overview
Araldite® LY 3569, in combination with Aradur® 1571, Accelerator 1573, and Aradur® 1575, forms a medium-glass-transition-temperature (Tg) B-stage epoxy system designed for Sheet Molding Compound (SMC) applications. This system is optimized for the production of Body-in-White (BiW) automotive parts, offering a balance between processing efficiency and mechanical performance. The system is free from volatile organic compounds (VOC) and is suitable for compounding on large-sized SMC rolls. The resulting SMC retains excellent drapability for up to 6 weeks at 23°C, accommodating a wide range of part thicknesses.
2. Applications
The Araldite® LY 3569 / Aradur® 1571 / Accelerator 1573 / Aradur® 1575 system is primarily used in:
Manufacturing Body-in-White (BiW) automotive parts.
Sheet Molding Compound (SMC) processes.
Applications requiring medium Tg and extended drapability.
3. Typical Properties
The following table summarizes the typical properties of the Araldite® LY 3569 / Aradur® 1571 / Accelerator 1573 / Aradur® 1575 system:
| Property | Value |
|---|---|
| Glass Transition Temperature (Tg) | 115 – 135°C |
| Cure Time | 5 – 10 minutes at 150°C |
| Processing Method | Sheet Molding Compound (SMC) |
| Part Thickness Range | Wide range |
| Drapability at 23°C | Up to 6 weeks |
| VOC Content | Free |
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