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FR Surfaces
SUR-TIN with Bungard Base material
if you use ORIGINAL BUNGARD positive coated PCBs, we have an interesting technical alternative:
SUR-TIN with Bungard Base material
1st Step
Etch your ORIGINAL BUNGARD PCB as usual.
2nd Step
develop the photoresist after etching once again with a negative films with open PADs.
3rd Step
apply our immersion tin SUR-TIN just to the now open PADs the photoresist will stay on the tracks and protect them.
This procedure is not widely known, but gives excellent results. Good solderability on the pads, nice optic and no extra costs!
