Kester 952 s flux is a specialized research and development for the PCB assembly wave soldering of halogen free, contains no organic acids in the type of rosin flux. Very low solids content (2%) and surfactant system feature makes almost no flux residues after welding, circuit board after wave soldering, the surface dry and clean appearance, no residual affect electronic test, save the cost of cleaning.
Kester 952 s showed improved welding performance, minimize bridge (short circuit) and the excessive welding defects. The flux non-conductive, non-corrosive, in line with the Bellcore TR - TSY - 000078 specification the most stringent requirements. 952 s suitable for applications in automotive electronics, computer, telecom products such as high reliability products. Board after welding on the surface of the insulation impedance is higher than the general type of organic acid water-soluble flux.
According to the J - STD - 004 standard, Kester 004 s is defined as L flux. Passed to the requirement of high reliability, product surface insulation resistance.