I have a customer that wants some broken windows replaced in a church. They are quite old and have been acid etched. They had someone else replace some previously with sandblasted glass, but the look is drastically different. Can anyone help me with a formula for "white acid"? I have heard amonnium bifluoride can be used, but I don't know how to mix it, or with what.
From what I know, you frost the whole piece first, then you clear up your pattern with hydroflouric acid. I use that for acid/mica etching. I do my acid/mica etching with paint mask, can I also clear up white acid with a paint mask resist, or do I need asphaltum? There are 28 windows with a small wallpaper pattern that would take hours to paint and peel.
Thank You
Darryl Gomes
near Toronto Canada
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