Paint Foaming or Cratering
Foaming or cratering is the formation of bubbles and results into small, round concave depressions in a paint film, during paint application and drying.
Possible Cause
Several things can cause foaming or cratering:
Shaking a partially filled can of paint.
Use of low quality paint or very old latex paint.
Use of a roller cover with wrong nap length.
Excessive rolling or brushing of the paint.
Applying a gloss or semi-gloss paint with a long nap roller.
Solution
All paints will foam to some degree during application; however, quality paints are formulated so the bubbles break while the paint is still wet, resulting in good flow and appearance. Use a quality synthetic roller sleeve (5mm nap for gloss & semi gloss and 12mm nap for low sheen and flat finish).
Help & Advice
Our expert support team can help with everything from choosing colour, what product is the most appropriate for your job or troubleshooting when something hasn’t gone your way.
Book an in-home consultation with a Dulux designer who will help you find the right colour scheme for your home, considering your furniture and lighting.
