I bought some some solder mask from an eBay seller in England several months ago and it works just fine. It takes a little practice to laminate it with out wrinkles. I pretty much follow the instructions in the link provided by John Anhalt. The developer is sodium carbonate (washing soda). The tricky part is the exposure. If you overexpose, you can't remove the pad areas. I use a 25W UV Damar CFL in a parabolic shop fixture and expose for about 1 1/2 min at a distance of about 5".
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> Does anybody have experience using this green film?
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