Water-Soluble Flux
CAS Number: 110-17-8
Water-soluble flux is a highly active soldering flux designed for demanding applications where maximum wetting is required; residues are fully removable with deionized water. Its organic acid activators provide exceptional soldering performance on difficult-to-solder surfaces including oxidized metals. Post-solder aqueous cleaning ensures no ionic contamination on the final assembly.
Technical Specifications
| pH | 2.5–4.5 |
| appearance | Clear amber liquid |
| flashPoint | >60°C |
| activatorType | Organic acid (halide-free) |
| solidsContent | 15–35 wt% |
| specificGravity | 0.85–1.05 g/cm³ |
Applications
- High-reliability military and aerospace PCB assembly
- Wave soldering with challenging surface finishes
- Manual soldering of oxidized components
- Automotive electronics assembly
- Medical device PCB manufacturing
Key Features
- High activity for difficult-to-solder surfaces
- Residues completely removable with deionized water
- Low ionic contamination after cleaning
- Excellent spread factor across all common solder alloys