Paint blisters or bubbles occur when the paint film lifts from the underlying surface. The loss of adhesion between the paint film and surface is usually caused by heat, moisture or a combination of both. This condition eventually leads to peeling.
Why Would Paint Bubble and Peel?
When paint on a wall or ceiling begins to bubble and peel, it can be an eyesore and cause worry over how to repair the damage. Whether you’re painting a room in your home or a commercial building, understanding why and how paint can bubble and peel can help prevent this issue and get you the best results.
When paint bubbles or peels, it’s usually due to moisture. In a newly-painted surface, water can get caught under the top layer of paint. As such, it’s best to avoid painting when the temperature is too cold, or if the surface or outdoor air is damp. To help reduce the risk of bubbles, the surface should also be thoroughly cleaned, sanded and primed before any layers of paint are applied.
In addition to outside moisture, water can come from inside a home or building and cause paint to bubble and peel. Heat from appliances and radiators can cause steam to collect on the walls, trapping moisture behind the paint and causing it to peel or fail. To minimize these risks, it’s important to check all appliances that might give off heat, like stoves, dishwashers and even clothing dryers. Minor changes to the heating