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About Vic Rothman
Expertise
I can answer questions concerning design,fabrication, repair, restoration,and instillation of stained glass windows. I know about the history and technique of stained glass. Former member of the restoration committee of
The Stained Glass Association of America.
Experience
I have over 36 years experience in the stained glass field. I have done craft shows, managed a stained glass retail store, taught classes, was a studio foreman and have had my own studio for over 16 years.Former restoration committee member of the Stained Glass Association of America. Founding member of The American Glass Guild.
Organizations
Stained Glass Association of America
The British Society of Master Glass Painters
New York Landmarks Conservancy
Association for Preservation Technology International
American Institute foe Conservation of Historic & Artistic Works
American Glass Guild
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You are here: Experts > Hobbies > Stained Glass > Stained Glass > copperfoiling mirror
Expert: Vic Rothman - 10/23/2009
Question
Hi there: I recently got a pattern for black glass, a mirror, and a nice bamboo spray. I cut it carefully, sprayed the mirror with a stabilizing spray, foiled the whole thing and patina-ed it. I was really pleased with the results. However, when I put it in a sunny window, I got a brown stain under the silver of the mirror. It seems to be caused by the sunlight or mild heat from the sun, 'cause it didn't happen to the other panel that is hanging on a pastel wall (no back light). How can I prevent the stain.
Thank you.
Rick.
Answer
I am not sure what you mean by "stabilizing spray". But whenever you cut mirror you need to paint over the cut edges. You can use special "mirror" paints,spray paint or nail polish. You should also protect the back of the mirror as it scratches easily. The staining comes from the infiltration of flux,patina or window cleaner. The liquid penetrates the area between the clear glass and the painted rear surface and attacks the mirror coating.
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