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977 Soldering Flux

977 Soldering Flux

Kester 977 is an organic, water-based, no-clean chemistry for high quality soldering of electronic circuit board assemblies. Designed for wave soldering applications, 977 provides good wetting on most surface finishes. The flux was specifically designed to reduce bridging, which is commonly associated with VOC-free, no-clean fluxes. 977 has excellent soldering properties for improved productivity without sacrificing reliability of the assembly. The flux leaves bright shiny solder joints and will not attack properly cured solder masks or FR-4 Epoxy-Glass laminate. The minimal amount of residue remaining after soldering is non-conductive, non-corrosive and does not need to be removed. The residues left after soldering will not interfere with in-circuit testing. 977 is not detrimental to the Surface Insulation Resistance (SIR) of the soldered assembly.

Due to changes in REACH Regulations, this product is no longer sold into Europe or to European customers.

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Size (liters) Size (gallons) Halogen Content Description Part # Type Type 2
1 Contains Halogen 977 Soldering Flux 1 GAL 6300000977 No-Clean Water-Soluble
5 Contains Halogen 977 Soldering Flux 5 GAL 6400000977 No-Clean Water-Soluble
53 Contains Halogen 977 Soldering Flux 53 GAL 6500000977 No-Clean Water-Soluble
20 Contains Halogen 977 Soldering Flux 20 LIT 6600000977 No-Clean Water-Soluble