ALPHA UNIQUE 3075YHF Reworkable Underfill Epoxy
ALPHA UNIQUE 3075YHF is a one-component underfill epoxy engineered to enhance the attachment strength of BGA packages and protect solder joints during mechanical stress such as drop and bending. Developed by MacDermid Alpha, this high-performance material combines fast flow speed with high impact resistance. Electronics manufacturers select ALPHA UNIQUE 3075YHF for high-density printed circuit board (PCB) assemblies requiring dependable mechanical protection along with low-temperature reworkability.
Key Features and Benefits of ALPHA UNIQUE 3075YHF
This advanced capillary underfill epoxy offers balanced processing and mechanical performance tailored for modern SMT lines:
- One-Component Formulation: Simplifies handling and dispensing operations without requiring complex mixing.
- Excellent Flow Speed: Enables fast, efficient capillary flow underneath fine-pitch BGA components.
- High Impact Resistance: Protects delicate solder interconnects against drop, shock, and board bending stress.
- Reworkable Properties: Facilitates component removal and board repair to minimize scrap rates and manufacturing waste.
- Halogen-Free Compliance: Meets strict environmental safety requirements without compromising structural integrity.
Uncured Material Properties and Processing Guidelines
Applying ALPHA UNIQUE 3075YHF on assembly lines allows operators to maintain excellent process stability. The uncured pale yellow liquid features a viscosity of 1,500 to 2,500 cps (at 25 °C), a pot life of 7 days at 25 °C, and an extended shelf life of 6 months when stored between 1 and 10 °C. Recommended convection oven curing profiles serve as a general guideline, including 7 minutes at 150 °C depending on specific application requirements.
Technical Specifications
| Category / Parameter | Specification Details |
|---|---|
| Chemistry & Appearance | One-component Epoxy (Pale yellow liquid) |
| Viscosity @ 25 °C | 1,500 to 2,500 cps (RVDV-II Brookfield #3) |
| Specific Gravity | 1.1 to 1.2 |
| Pot Life / Shelf Life | 7 days @ 25 °C / 6 months @ 1 to 10 °C |
| Convection Oven Cure Option | 7 minutes @ 150 °C |
| Reworkability & Environmental | Reworkable, Halogen-free |
Conclusion
In summary, ALPHA UNIQUE 3075YHF offers a high-reliability, reworkable underfilling solution that maximizes BGA joint protection under harsh mechanical stress. For technical support, custom packaging options, or commercial quotes, please reach out via Contact – LORIOT INDUSTRIAL.

