How To Remove Mastic From Mirror

Mastic is a type of adhesive that is often used to secure mirrors to walls. However, over time, mastic can become discolored or brittle and may need to be removed. Fortunately, this is a relatively simple process that can be completed in a few steps.

Materials:

Razor blade or plastic scraper
Denatured alcohol or rubbing alcohol
Clean cloths or paper towels

Instructions:

Safety First: Wear gloves and safety glasses to protect yourself from sharp edges and chemicals.
Carefully Remove Large Pieces: Using a razor blade or plastic scraper, carefully pry off any large pieces of mastic from the mirror and wall.
Apply Denatured Alcohol: Dip a clean cloth or paper towel in denatured alcohol or rubbing alcohol and apply it to the remaining mastic. Allow it to soak for a few minutes.
Scrape Away Mastic: Use the razor blade or plastic scraper to gently scrape away the softened mastic. Be careful not to scratch the mirror or wall.
Wipe Clean: Wipe the mirror and wall with a clean cloth or paper towel to remove any remaining mastic or residue.

Tips:

If the mastic is old and stubborn, you may need to repeat the application of denatured alcohol and scraping process several times.
Avoid using sharp objects such as knives to remove mastic, as they can damage the mirror or wall.
If you are removing mastic from a painted surface, test the denatured alcohol on an inconspicuous area first to ensure it does not damage the paint.