November 9, 2026 ALPHA HiTech UP44-5566T UV Cure Adhesive Solution
ALPHA HiTech UP44-5566T is a one-component UV cure adhesive system suitable for fast curing and strong bonding in electronic component coating and fixing applications. Developed by MacDermid Alpha, this urethane acrylate formulation delivers excellent adhesion strength and processing efficiency. Electronics manufacturers choose ALPHA HiTech UP44-5566T for surface-mount technology (SMT) and general assembly lines that require rapid positioning, mechanical stability, and high environmental compliance.
Key Features and Benefits of ALPHA HiTech UP44-5566T
This high-performance UV-curable adhesive offers balanced mechanical and electrical properties tailored for modern circuit assembly:
- Fast UV Curing: Rapidly cures under a UV light source to minimize processing time and increase production throughput.
- Excellent Adhesion: Ensures reliable bonding and fixing of delicate electronic components onto substrates.
- Thixotropic Paste Profile: Features a pale yellow paste appearance with a high thixotropic index (4.5 to 6.5) to prevent unwanted slumping or spreading.
- Halogen-Free Formulation: Meets strict industry environmental standards without compromising mechanical strength.
- RoHS Compliant: Fully complies with the RoHS Directive 2011/65/EU for global compliance.
Application and Curing Guidelines
Effective dispensing of ALPHA HiTech UP44-5566T can be performed at standard room temperature conditions. Because the material is light-sensitive, exposure to daylight, UV light, and artificial lighting should be kept to a minimum. Syringes stored vertically at 1 to 10 °C (tip facing bottom) must be thawed at room temperature for 2 hours before opening the cap. To avoid contamination, unused product must not be returned to its original container. Full property development is achieved by curing under a Metal Halide Lamp at 200 mW/cm² (365 nm wavelength) for a minimum of 10 seconds.
Technical Specifications
| Category / Parameter | Technical Specification |
|---|---|
| Chemistry & Appearance | Urethane Acrylate (Pale Yellow Paste) |
| Viscosity @ 25 °C | 8,000 to 18,000 cP (RVDV-II Brookfield #6, 30 rpm) |
| Thixotropic Index / Specific Gravity | 4.5 to 6.5 / 1.0 to 1.2 |
| Glass Transition Temperature (Tg) | 65 ± 5 °C (via TMA) |
| CTE (α1) / Hardness | 220 ± 20 ppm / 65 to 75 (Shore D) |
| Pot Life / Shelf Life | 7 days @ 25 °C / 6 months @ 1 to 10 °C |
| UV Curing Condition | Metal Halide Lamp @ 200 mW/cm², 365 nm (≥ 10 seconds) |
| Environmental Standards | Halogen-free, RoHS Directive 2011/65/EU compliant |
Conclusion
In summary, ALPHA HiTech UP44-5566T provides a reliable, fast-curing UV adhesive solution designed for precision component fixing and coating in high-density electronics assembly. For technical support, product datasheets, or commercial quotes, please reach out via Contact – LORIOT INDUSTRIAL.
