First, save the way
Due to the solder paste for chemical products, preserved in cold storage (5-10 DEG C) can be reduced activity, increase the service life, avoid placing in the office of the high temperature, easy to paste quality.
Two, back to temperature
Refrigerated activity was greatly reduced, so before use must paste set room temperature, to restore the activity, can best welding state.
Three, stirring
The 1 is to make tin powder mixing evenly mixed with Flux, but if the stirring time is too long will destroy the tin powder shape and viscosity.
2 if before mixing, paste surface lump, the surface can be used to remove lumps
3 different types of solder paste, labels do not mix, in order to avoid the occurrence of adverse phenomenon.