Step 5 · Dissolve Residue with a Solvent
After scraping, a thin, oily film or residue will likely remain. To remove this, apply a small amount of a suitable solvent to a clean cloth. Mineral spirits are highly effective. Alternatively, rubbing alcohol or a commercial adhesive remover like Goo Gone can be used. Gently rub the residue in a circular motion until it dissolves and lifts from the surface. Remember to test the solvent on a hidden spot first.