Kester 988 Soldering Flux

Kester 988 Soldering Flux

icon-lich.svg August 24, 2026

Kester 988 Soldering Flux for Lead-Free Wave Soldering

Kester 988 Soldering Flux is a low-solids, no-clean liquid flux specially designed for excellent solderability and best-in-class through-hole fill in lead-free wave soldering processes. Developed by Kester, this formulation offers exceptional performance for complex printed circuit board assemblies.

Superior Through-Hole Fill and Solderability

Engineered for demanding lead-free thermal profiles, Kester 988 promotes outstanding wetting characteristics that drive deep hole penetration. By ensuring complete vertical barrel fill, Kester 988 Soldering Flux prevents joint defects and enhances mechanical strength across double-sided and multilayer circuit boards.

Cosmetic Board Finish and Non-Conductive Residues

The post-soldering residue left by Kester 988 Soldering Flux is evenly distributed and non-tacky, keeping circuit boards cosmetically clean upon exiting the wave soldering equipment. Furthermore, the remaining residue is entirely non-conductive, allowing it to stay on the board without compromising assembly reliability.

Technical Specifications

Property Specification
Product Model Kester 988
Flux Type Low-Solids, No-Clean Liquid Flux
Process Compatibility Lead-Free Wave Soldering
Performance Highlight Best-in-class Through-Hole Barrel Fill
IPC J-STD-004A Classification ROM0
Residue Characteristics Evenly distributed, Non-tacky, Non-conductive
Cleaning Required No

Conclusion

Optimizing lead-free assembly lines with reliable chemical solutions ensures high manufacturing yields and durable solder joints. For product availability, technical data sheets, or purchasing assistance, please connect with Contact – LORIOT INDUSTRIAL.


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