Copper Patina Stained Bevels While Drying in the Sun
by Dan
(Valley Center, Ca)
Left copper sulfate patina on project out in sun and when attempted to clean panel it now has multiple white cloudy stains on glass I am unable to remove. Have tried windex, steel wool, lime away, to no avail. Any suggestions? Thanks, Dan
AnswerHi Dan,
Oh my, what a hard lesson to learn. It sounds like the copper sulphate etched the glass, and if that is the case, nothing removes etching. It's permanent. However, let's hope that I'm wrong. Try scrubbing it with toothpaste. I've seen toothpaste remove marks on glass that nothing else would touch.
Perhaps someone reading this has had a similar experience and will tell us what they did.