Chosen Solution
There was a number written on bottom of clear acrylic chair I purchased. I tried to remove it first with glass cleaner. No luck. Then I used nail polish remover. It removed writing (looked like black sharpie) but left area foggy, no longer clear. How can I restore?
Nail polish remover generally contains acetone or ethyl acetate both of which dissolve plastic. You could possibly buff it out but you are going to make a much larger area involved. IMHO further repair attempts are going to be futile. Live with it.
Lookup a technique called “chemical polishing”. It uses a solvent of the material and a way of “rolling” the papertowel / rag so only fresh solvent is wiping the surface. I do it on car headlight lenses, but it took a fair amount of practice. I use a liquid acrylic glue, but straight acetone should work.
Next time try ISO alcohol. I find it removes permanent marker ink.
