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Paint bubbles on walls, also called blisters, develop when paint detaches from the wall and swells to form a bubble. Mostly, bubbles develop with new paint but old paint can bubble too. Bubbling does not depend on paint type and quality, it results from prevailing environmental conditions.

Let’s take a look at some common environmental factors that cause paint bubbling:

Warm Walls

Paint on sun-heated walls is at risk of bubbling. Usually, the solvent that keeps the paint wet gradually evaporates and the paint dries up. When fresh paint is applied and the wall heats up, vapors that are produced in drying paint get trapped under the paint causing bubbles to develop.

Damp Walls

Moisture trapped in walls can cause paint to bubble regardless of whether the wall has been newly painted or not. Moisture can easily crawl into walls if the wall is made of porous material, or if there is a plumbing issue or roof leakage. When trapped water tries to move outward it hits the wall paint, and the pressure of the water makes the paint swell or separate from the wall surface.

                                                        What is Causing My Wall Paint to Bubble?

Extreme Humidity

Paint will bubble if the paint job is performed at a location where there is extreme humidity. Due to moisture in the air, bubbling can begin during the painting process or after the paint has started to dry. Even dry paint can bubble up in cases of extreme humidity. Improper management of house ventilation usually causes this problem.

Conflict with the Underlying Surface

If the existing paint is incompatible with the new paint you are applying, your wall paint may bubble. Walls that were not originally painted with a primer are more susceptible to bubbling. The existing paint may not show any signs initially, but as the new paint dries, it begins to shrink causing the new paint to detach from the wall and produce bubbles.

Other factors that cause paint bubbling are contaminant particles like dirt on the wall and the improper use of primer which can cause a problem with paint sticking to the wall properly.

We hope that the above article has been helpful in providing you information regarding paint bubbles. If you are looking for a painting contractor to fix your paint bubbling issue, contact Eagle Painting Company —one of the leading interior & exterior house painting companies offering affordable residential painting services to Keller, Southlake, Colleyville and surrounding areas in Dallas Fort Worth, TX. For more information, contact us at 817 333 8866. Our house painters are ready to help you!

Call Us at 817-333-8866