September 7, 2026 Kester R500 Solder Paste for Automated Dispensing
Kester R500 Solder Paste is a water-soluble solder paste formula specifically engineered to deliver consistent dot volume for automated dispensing equipment. Developed by Kester, this specialized material features a highly active chemistry designed to remove stubborn oxides and ensure rapid wetting across demanding printed circuit board surfaces.
Key Benefits of Kester R500 Solder Paste
Engineered to overcome tough surface oxidation while maintaining deposit consistency, this automated dispensing material offers substantial process advantages:
- Optimized flow characteristics for repeatable dot dispensing on high-speed automated equipment.
- Aggressive activator system capable of removing tenacious oxide layers and soldering directly to OSP-coated boards.
- Maintains physical activity and tackiness characteristics for up to 8 hours during operation.
- Delivers exceptional wetting performance across a wide range of reflow thermal profiles.
- Water-soluble flux residues can be completely removed using standard warm water washing systems.
Technical Specifications and Process Capability
Precision dot dispensing requires stable rheology to prevent stringing or needle blockages. Utilizing Kester R500 Solder Paste ensures uniform deposit geometry, high joint reliability, and efficient flux removal after reflow.
| Technical Parameter | Specification Details |
|---|---|
| Flux Classification | Water-Soluble (Organic Acid) |
| Application Method | Automated Dot Dispensing |
| Tack Life / Bench Life | Up to 8 Hours |
| Surface Compatibility | OSP coated boards, heavily oxidized surfaces |
| Reflow Profile Window | Broad temperature tolerance |
| Residue Cleaning | Requires water wash post-reflow |
Conclusion
Achieving fast, repeatable dot deposits on challenging board finishes is streamlined with Kester R500 Solder Paste. For technical support, safety datasheets, or commercial purchasing, please reach out through Contact – LORIOT INDUSTRIAL.
