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| [Orchid] Etching with Press-N-Peel | ||
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From: Joan Hammond Date: Wed Jul 31 22:45:20 2002 |
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========[ Invite a Friend - http://www.ganoksin.com/invite.htm ]======== I'm having difficulty maintaining a solidly resistant mask when I etch copper and brass in ferric chloride using Press-n-Peel. Even with a slow solution, the ferric chloride eats through the resist, so that the area that is protected has pitting, similar to an aquatint. Some surfaces remain completely masked. I want to be able to achieve a deep etch in brass, to make a plate I can use in the rolling mill. I also want to do more shallow etches using copper/silver bimetal. I've followed the procedures I received with the P-n-P--as follows: Clean copper or brass (water sheets off) HP LaserJet to print design on p-n-p Iron set on 3 (polyester/rayon setting) Air cooled or quenched before peeling mask off Tested by etching in half-hour increments from 30 minutes to 3 hours: Test strip A in used, nearly spent ferric chloride and Test strip B in fresh, full-strength ferric chloride. Both etched through the mask, though A didn't start to etch through until about 2 hours. I'll appreciate any help other Orchid members have to offer. Joan Hammond ____________________________________________________________________ T h e O r c h i d L i s t Open Electronic Forum for Jewelry Manufacturing Methods and Procedures ____________________________________________________________________ Orchid FAQ: ~ http://www.ganoksin.com/orchid/faq.htm Orchid Archives: ~ http://www.ganoksin.com/orchid/archive Orchid Galleries: ~ http://www.ganoksin.com/orchid/gallery.htm Invite a Friend: ~ http://www.ganoksin.com/invite.htm ____________________________________________________________________ Tips From The Jeweler's Bench - Article Archive ~ http://www.ganoksin.com/borisat/tip_sear.htm The Jeweler's Selected Bibliography List ~ http://www.ganoksin.com/jewelry-books Buy Orchid Jewelry: ~ http://www.ganoksin.com/shop ____________________________________________________________________ -Unsubscribe: -Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank ____________________________________________________________________ |
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