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Close up image of a surface that has small, round conclave depressions when bubbles break in a paint film.

FOAMING/CRATERING - INTERIOR

Formation of bubbles (foaming) and resulting small, round concave depressions (cratering) when bubbles break in a paint film, during paint application and drying.

Causes

  • Shaking a partially-filled can of paint.
  • Use of low-quality paint or very old latex paint.
  • Applying (especially rolling) paint too rapidly.
  • Use of a roller cover of low quality, or with wrong nap length.
  • Excessive rolling or brushing of the paint.
  • Applying a gloss or semi-gloss paint over a porous surface.

Solutions

  • All paints will foam to some degree during application; however, higher quality paints are formulated so the bubbles break while the paint is still wet, allowing for good flow and appearance.
  • Avoid excessive rolling or brushing of the paint or using paint that is more than a year old.
  • Apply gloss and semi-gloss paints with a short nap roller cover, and apply an appropriate sealer or primer before using such paint over a porous surface.

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8 Oz. Sample
1 Gallon
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5 Gallon
The following product(s) is required to properly prep and pre-treat wood prior to any stain project.
Required product
BEHR PREMIUM ALL-IN-ONE WOOD CCCC
$0.00
The following product(s) is required to properly prep and pre-treat wood prior to any stain project. Only available in store at Home Depot.
Required 3rd party product
BEHR PREMIUM ALL-IN-ONE WOOD CCCC
The 9 in. x 1/4 in. Polyester Adhesive Roller Cover has a hard texture, making it ideal for applying all types of adhesives to smooth surfaces. It can be used for stippling and applying sand paints.
The following product(s) is recommended when stripping is needed.
$0.00
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