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I got a vintage snare drum with a wrap called “mother-of-pearl” but a teenager put brown spray paint on it. I’ve been researching and as far as I can tell the wrap is made of cellulose nitrate or celluloid acetate. I know nothing about these materials. What can I use to strip the brown spray paint off but try not to harm the original wrap? If I do harm the wrap, can I fine sand and polish it back? I don’t want to irreparably etch it. EDIT: added a few “after” photos.

@e30m20b27 from your research it appears to be made from a celluloid called “Pyralin”. Appears to be a common material for old snare drum wraps. Try Mr. Clean Magic Eraser and lots of elbow grease.Do NOT use things like like acetone or lacquer thinner. Isopropyl Alcohol is okay to use. For some more ideas check on here and always try a small area first. See what works best for your drum.