This technical bulletin describes the Alpha EF-6808HF, a halogen-free, alcohol-based, no-clean flux for wave soldering applications.
The Alpha EF-6808HF is a halogen-free, low solids, alcohol-based, no-clean flux designed for both automatic and manual soldering. It is particularly noted for its excellent via-fill performance in high-density component assembly. The flux is compatible with both leaded and lead-free alloys and produces uniform, transparent, non-tacky residues with high probeability.
The document provides specific application parameters for spray dispensing, including recommended flux usage rates, preheat temperatures, conveyor speeds, and soldering temperatures. It also details the product's compliance with various industry standards regarding halogen content, solid content, and electrical reliability tests such as surface insulation resistance and electronic migration. This manual is written in Chinese.
| Appearance | Transparent light amber |
|---|---|
| Flash Point | 17 °C |
| Solid Content | 4.0% |
| Specific Gravity | 0.793 +/- 0.005 |
| Shelf Life | 360 days |
| Acid Value | 19 mg KOH/g |
| Recommended Diluent | ALPHA 425 |
The recommended usage is 800 – 1,200 µg/in² (solid phase).
Yes, it can be used with various leaded and lead-free alloys.
The recommended top surface preheat temperature is 80 – 115 °C.