LV1000 low-voiding flux coating is for solder preforms. Is halide-free and is reportedly suited for assembly processes in which components don’t allow for proper outgassing of volatized flux. Provides a clear coating; doesn’t clog pick-and-place equipment. Has weight percentage as low as 0.5%. Is applied to the outside of the preform where flux is required.
Indium Corp., www.indium.com