I need to replace the FEP film in my printer vat. However some of the resin has gotten into the screw holes and cured there. I got about 5 of the 10 screws out but the others have really gotten locked tight. Even my handyman brother-in-law tried it and suggested getting something to dissolve the resin. Anyone have any suggestions? If I can't get them out I'd have to either drill them out (I don't have a drill) or spend $50 to replace the vat. I thought maybe acetone (nail polish remover) or a long soak in IPA.