Kester 331 Cored Wire Technical Overview

Kester 331 Cored Wire is a water-soluble organic flux-cored solder wire engineered for high-efficiency electronic assembly, manufactured by Kester. Formulated as the core flux version of Kester’s popular 2331-ZX liquid flux, it provides superior oxide removal on difficult-to-solder base metals compared to conventional rosin fluxes.

Key Features of Kester 331 Cored Wire

Engineered for high thermal tolerance and rapid cleaning performance, this organic cored solder wire offers key operational advantages:

• Water-Soluble Organic Flux Formula: Provides fast fluxing action and higher activity than standard rosin materials on challenging metallizations.
• Easy Hot Water Residue Removal: Post-soldering residue washes away completely with a hot deionized (DI) water rinse.
• High Thermal Stability: Exhibits enhanced heat resistance compared to typical organic fluxes, resulting in minimal smoke and odor during soldering.
• J-STD-004 ORH1 Classification: Categorized as Type ORH1 per J-STD-004 specifications.
• Alloy Versatility: Fully compatible with both traditional leaded and modern lead-free solder alloys.

Processing & Residue Removal Guidelines

The organic flux chemistry in this wire ensures fast spreading and rapid joint formation. To maintain high surface insulation resistance and eliminate organic acid residue, assemblies must undergo a heated water rinse post-soldering. Using deionized water is recommended to avoid introducing mineral impurities from municipal water supplies.

Conclusion

In summary, Kester 331 Cored Wire delivers fast soldering, minimal smoke, and easy water-wash cleaning. For technical data, pricing, or product availability, reach out via Contact – LORIOT INDUSTRIAL.

Technical Specifications