August 28, 2026 Kester 985M Liquid Flux for High-Density Assembly
The Kester 985M Liquid Flux is a broad-spectrum, halide-free, low-solid, high-activity no-clean flux developed for use with both traditional tin-lead and lead-free solder alloys. Designed to offer a wide process window, it delivers superior hole-fill and low bridging performance on both standard and high-density circuit board assemblies. Learn more about the manufacturer on the MacDermid Alpha official site.
Kester 985M Liquid Flux Key Features and Performance Benefits
Engineered for maximum reliability and defect prevention during automated wave soldering, Kester 985M provides significant technical benefits:
- Broad Alloy Compatibility: Suitable for both eutectic tin-lead (SnPb) and lead-free alloy wave soldering processes.
- Superior Wetting & Hole-Fill: High-activity activation package delivers fast wetting, ensuring optimal through-hole barrel fill on complex boards.
- Defect Reduction: Effectively minimizes solder bridges and solder balls across all soldering operations.
- Pin-Testable Minimal Residues: Leaves minimal, non-apparent post-solder residues that will not interfere with ATE or ICT pin testing.
Kester 985M Liquid Flux Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Kester 985M |
| Flux Type | Halide-Free / Low-Solid / High-Activity No-Clean |
| Alloy Capability | Tin-Lead (Sn-Pb) and Lead-Free Alloys |
| Process Window | Wide process window (Standard & High-Density) |
| Defect Prevention | Low solder bridging and solder balling |
| Residue Characteristics | Minimal, non-apparent, pin-testable |
Conclusion
Deploying Kester 985M Liquid Flux in your manufacturing line guarantees excellent solderability, low defect rates, and clean, pin-testable boards. For technical support, pricing, or product availability, please reach out via Contact – LORIOT INDUSTRIAL.
