Why Does Wet Paint Bubble?

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Why Does Wet Paint Bubble?

Once you take the time and expend the effort to repaint a surface or object in your home, you probably want your paint job to last for as long as possible. It can be frustrating to notice signs of paint failure soon after applying a coat of paint.


A variety of issues could be the culprit if you notice wet paint bubbling on a surface.


Once you know why wet paint is bubbling, you’ll know how to resolve this issue and ensure that your new paint job looks beautiful and lasts for years.

  1. Never roll the paint onto the surface more than necessary. Stop rolling the paint roller after you apply the paint completely.

    1.Reasons for Bubbling Paint

    Sometimes paint will foam and develop bubbles soon after you apply it to the surface while it’s still wet. There are several reasons for paint foaming to occur.


    • If you are using a partially full can of paint and you shake the paint in the paint can prior to applying it, this can make the paint develop bubbles after you brush or roll it onto a surface.

    • Using old paint or low-quality paint may cause bubbles to appear in the wet paint.

    • As you apply the paint with a paint roller, if you roll the paint on too rapidly, you may create bubbles in the paint. Instead, use a slow and smooth application technique to apply the paint.

    • Over application of the paint with the paint roller, rolling it back and forth repeatedly on the same surface area, could produce bubbles in the wet paint.

    • Check the nap of the paint roller if you see paint bubbles. Applying a semi-gloss or gloss paint with a long-nap roller often creates paint bubbles.

  2. 2.Solutions for Bubbling Paint

    Take preventative steps to stop bubbling before it occurs.


    • Use the highest quality paint you can afford. Low-quality paints tend to create bubbles. High-quality paints have a special formulation that enables the bubbles to pop while the paint remains wet. This special formulation ensures that the paint goes on smooth and looks attractive.

    • Never roll the paint onto the surface more than necessary. Stop rolling the paint roller after you apply the paint completely.

    • Avoid using old paint. Paint that is over one year old may produce bubbles in the wet paint after you apply it to the surface.

    • Always use a short-nap paint roller when applying semi-gloss or gloss paint to a surface.

  4. 3.Bubbles In Dried Paint

    Despite your best efforts, it’s also possible that bubbles will appear in paint as it dries or after it dries. If this occurs, there could be several different reasons for the paint failure.


    • Painting a moist or wet surface may cause the moisture to rise from the surface and cause blisters or bubbles.

    • Applying oil-based paint or latex paint may cause bubbles.

    • Improperly preparing the surface or failure to scrape the surface fully, can create bubbles.

    • Allowing latex paint to come into contact with moisture may create bubbles.


    With proper preparation and attention to detail, your painted surfaces should remain smooth and beautiful. Check out the Redbeacon website for more helpful information.

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