Using Heat to Remove Glue
If the glue residue is not too stubborn, using heat can help soften the and make it easier to clean. You can use a hairdryer or a heat gun to warm the glue for a few seconds or until it softens. Once the glue softens, gently peel off the label with a plastic scraper or your fingernails. Do not use sharp objects that may damage the plastic surface. Be careful not to heat the plastic too much as it may warp or melt.
Using Oils and Solvents
Oils and solvents can break down the adhesive and make it easy to remove the glue from the plastic surface. Some common oils and solvents that you can use include rubbing alcohol, citrus-based cleaners, and vegetable oil.
Rubbing Alcohol: Apply rubbing alcohol on the glue residue, and then use a soft cloth or paper towel to rub the glue off the plastic surface. Be sure to wash the plastic with soap and water afterward to remove any leftover alcohol.
Citrus-based Cleaners: Citrus-based cleaners, also known as orange-based cleaners, are natural and safe to use and effective in removing glue residue. Apply the citrus-based cleaner on the glue residue, and then use a cloth or paper towel to rub it off.
Vegetable Oil: Apply vegetable oil to the glue residue, and then let it sit for a few minutes before using a cloth or paper towel to rub off the glue. Wash the plastic with soap and water to remove any leftover oil.
Using Vinegar
Vinegar is acidic and highly effective in breaking down the adhesive of glue. You can use white vinegar or apple cider vinegar to remove glue residue from plastic. Simply pour vinegar onto a cotton ball or cloth and wipe the surface with the residue. Let it sit for a few minutes before wiping it away. Rinse the plastic with water and dry it with a cloth.
Using Adhesive Removers
If all else fails, you may want to try using an adhesive remover, which is specifically designed to remove adhesives from various surfaces, including plastic. Some adhesive removers, such as Goo Gone, are effective in removing the glue residue from plastic surfaces. Apply the adhesive remover onto the glue residue, and then let it sit for a few minutes or as directed before wiping it off. Rinse the plastic with water and dry it with a cloth.
Removing glue residue from plastic is not impossible, and there are many simple and effective ways to clean glues from labels. Using heat, oils and solvents, vinegar, or adhesive removers, you can restore the clean plastic surface and remove stubborn glue residue.