November 4, 2026 ALPHA HiTech AD43-9600W Low Temperature Epoxy Adhesive
ALPHA HiTech AD43-9600W is a high-performance one-component low temperature cure epoxy system designed for microelectronic packaging applications. Developed by MacDermid Alpha, it is specially formulated to adhere lenses onto PCB bars for Back Light Unit (BLU) assemblies.
Key Features and Engineering Benefits
Engineered for high-throughput assembly processes requiring low temperature curing and strong structural bonding, this adhesive material delivers superior performance:
- Low viscosity and fast-flowing characteristics ensuring rapid and precise dispensing on circuit boards.
- Fast curing profile at low temperatures (80°C), protecting heat-sensitive substrates and optical components.
- Excellent adhesion strength on Nylon (PA9T), Liquid Crystal Polymer (LCP), and various metal surfaces.
- Fully halogen-free formulation supporting sustainable electronic manufacturing.
- Complies strictly with global RoHS Directive 2011/65/EU environmental standards.
Application Guidelines and Thermal Curing
Proper storage, thawing, dispensing, and reflow oven curing are vital to achieve maximum mechanical and thermal properties:
- Storage & Thawing: Store frozen at < -20°C in an upright position (tip facing bottom) to ensure product stability. Set syringe aside at room temperature for 2 hours to thaw completely before opening the cap; do not refreeze after thawing.
- Dispensing Parameters: Dispenses effectively under standard room temperature conditions. Available in 10cc, 30cc, and 50cc syringe packaging.
- Curing Profile: Achieve full property development by curing at 80°C and holding for a minimum of 2 minutes in a reflow oven.
Technical Specifications
Below is the detailed technical bulletin overview for process engineering and BLU manufacturing design:
| Category / Property | Specification / Value |
|---|---|
| Chemical Base | One-component Epoxy |
| Appearance | White |
| Viscosity (Brookfield #7, 30 rpm @ 25 °C) | 30,000 to 50,000 cP |
| Specific Gravity | 1.2 to 1.4 |
| Pot Life (@ 25 °C) | 5 days |
| Shelf Life (< -20 °C) | 6 months |
| Glass Transition Temperature (Tg) | 55 ± 5 °C |
| CTE (α1 / α2) | 65 ± 5 ppm (<Tg) / 190 ± 10 ppm (>Tg) |
| Hardness (Shore D) | 70 to 80 |
| Reflow Cure Profile | 80 °C for ≥ 2 minutes |
| Environmental Compliance | Halogen-Free, RoHS 2011/65/EU |
Conclusion
Utilizing ALPHA HiTech AD43-9600W guarantees exceptional bonding strength for BLU lens mounting on LCP and Nylon substrates while shielding components from high thermal stress. For technical support, dispensing equipment guidance, or volume quotes, please visit Contact – LORIOT INDUSTRIAL.
