Quote:
Originally Posted by barrymagrec
The green coating is solder resist and it's applied to the board after etching and plating but before any components are fitted or soldered.
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Slight correction, pcbs are plated after the solder resist is applied these days, saves the cost of plating the whole board.
I bought solder resist years ago and never ended up using it (Taiyo ink product) and it is a two pack epoxy (never used it as I now get my pcb's made in China - much cheaper).
Don't know the price these days but I think it cost me around $160 for 1 litre.
It is also not self curing, it needs to be baked.