I recently came across this YouTube video: "How to equip home made PCBs with a professional looking stopping agent (solder resist layer)" <http://www.youtube.com/watch?v=VNYIVZgbi9M>. What is this film that he's using, and where can I get some? (There is a link in the comments section of the video, but the site it points to is in German, and for some reason further comments have been disabled.)
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U.S. source for this heat-transfer solder resist film?
2013-08-08 by ohmware