KESTER 186 Soldering Flux

Kester 186 Rosin Flux is a high-performance formula developed for critical soldering applications, even on difficult assemblies, where process requirements mandate a Type RMA (Rosin Mildly Activated) flux. It meets requirements for MIL-F-14256 and provides fluxing ability approaching that of Type RA flux.

Kester 186 is engineered for reliability, possessing high thermal stability suitable for soldering multi-layer assemblies that require high preheat temperatures. Its residue offers superior electrical and environmental properties, making it acceptable for many no-clean applications.

Product Key Features

• Maintains performance and residue solubility even after exposure to high preheat temperatures for multi-layer soldering.
• Causes no surface insulation resistance (SIR) degradation.
• Non-corrosive and non-conductive.
• No-clean compatible

Applications

• Designed for use in applications where difficult assemblies must be soldered but an RMA flux type is required.
• Ideal for soldering complex multi-layer electronic assemblies requiring high preheat temperatures.