Hi guys I am using UV exposure method on clear acetate 15 secs exposure caustic soda developer about a 60 secs hydrochloric acid / peroxide etchant no bubbler just sloshing about but the problem is the protective layer is coming off after a few minuets of etching hydrochloric is 30% peroxide is 9% Any advice please Dave
Message
photo layer coming off
2013-05-12 by dave_donlan