If painter's tape has been left on wood or glass for an extended period and has become difficult to remove, you can try the following methods to help remove it:
Heat the tape: Use a hairdryer on low to medium heat and direct the warm air towards the tape. The heat will soften the adhesive, making it easier to peel off. Be cautious not to overheat the surface or hold the hairdryer too close to the wood or glass.
Apply oil or lubricant: Apply a small amount of oil, such as cooking oil or baby oil, onto the tape residue. Allow it to soak for a few minutes to loosen the adhesive. Then, gently rub the residue with a soft cloth or sponge. The oil should help dissolve the adhesive, making it easier to remove.
Use a commercial adhesive remover: There are adhesive removers available specifically designed to remove sticky residue from various surfaces. Look for a product that is safe for use on wood and glass. Follow the manufacturer's instructions on how to apply and remove the adhesive remover.
Try rubbing alcohol: Dampen a cloth or cotton ball with rubbing alcohol (isopropyl alcohol) and gently rub the tape residue. The alcohol helps break down the adhesive, making it easier to lift off. Ensure that the alcohol does not come into contact with any finishes or surfaces that may be sensitive to it.
Use a scraper or credit card: For glass surfaces, you can try carefully scraping the tape residue using a plastic scraper or an old credit card. Start from the edges and apply gentle pressure to avoid scratching the glass. Be cautious not to use a metal scraper as it can damage the surface.
Always test any method or product in an inconspicuous area first to ensure it doesn't cause any damage or discoloration to the wood or glass. If you're uncertain about using a particular method, it may be wise to consult a professional for guidance.