Kester 285 Cored Wire Technical Overview

Kester 285 Cored Wire is a mildly activated rosin flux-cored solder wire engineered for high-reliability electronics assembly, manufactured by Kester. Formulated with high-quality purified rosin and a synergistic combination of activating agents, this cored solder wire delivers fluxing capability comparable to fully activated rosin formulas while maintaining mildly activated process compliance.

Key Features of Kester 285 Cored Wire

Designed for difficult electronic soldering applications, this material offers essential technical and operational advantages:

• High Activity RMA Performance: Delivers superior fluxing action to dissolve surface oxides rapidly on complex assemblies.
• IPC ROL0 Flux Classification: Categorized as Type ROL0 under IPC J-STD-004 specifications, ensuring zero active halides.
• Former Military Specification: Formally classified as Type RMA per QQ-S-571 standards.
• Alloy Versatility: Fully compatible with both traditional leaded and modern lead-free solder alloys.
• RoHS Directive Compliance: Meets Directive 2011/65/EU requirements when paired with lead-free alloy compositions.

Process Efficiency & Electrical Reliability

The synergized activator system enhances wetting speed and solder spreading across various component leads and PCB surface finishes. Despite its high flux activity, the post-solder residue exhibits high dielectric resistance, ensuring long-term circuit reliability without encouraging parasitic leakage currents.

Conclusion

In summary, Kester 285 Cored Wire provides high fluxing activity, mildly activated rosin protection, and ROL0 compliance for electronic assembly. For technical support, pricing, or product availability, reach out via Contact – LORIOT INDUSTRIAL.

Technical Specifications