I think you are referring to masks for applying solder paste. I was thinking of the colour you use to stop solder from going where it should not.
- Anders Gustafsson Engineer, CNE6, ASE Pedago, The Aaland Islands (N60 E20) www.pedago.fi phone +358 18 12060 mobile +358 40506 7099 fax +358 18 14060 >>> Cat C <catalin_c...@hotmail.com> 2010-06-15 20:30 >>> There's a guy in Montreal that can cut the soldermask for you out of mylar at a very reasonable cost. It will take me a while to find his details so I'll only do it if there's interest.