Paint bubbles can be removed with a trowel. Smaller bubbles may be scraped away. Areas with bubbles should be rubbed with sand paper, and a joint compound should be applied to even out the wall. This compound must then be sanded and any remaining dust removed. Two coats of primer should be applied and allowed to dry before applying coats of paint.
Before fixing paint bubbles on walls, it is essential to ensure that there is no dampness. Painters should allow 24 hours to pass to make sure that the bubbles die down on their own before removing them. Another method of removing a bubble is popping it with the end of a putty knife and sliding the blade under to remove the surrounding material.
To remove exterior house paint bubbles, it is important to find the root cause of the problem, such as moisture or heat. Dark exterior colors absorb more heat and cause bubbling, and the moisture that gets under the paint can also cause bubbles to form. Painters should carefully open exterior bubbles with a scraper, apply sand paper to the surface, clean the paint with soapy water, use a scrubbing brush to clean the area and rinse the area off with a garden hose. Repellent sealer can be used to seal out moisture that causes bubbles. Sealer needs to be left to dry for at least two days. Primer may then be applied to the area, allowing another two days for drying. Painting should begin on a cool day. After the paint dries, it is best to keep applying thin layers of paint until there are no blemishes.