Blistering

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Description

Dome shaped paint bubbles indicating loss of adhesion. Can occur in isolation or groups.

 

 

 

 

 

Probable Cause

  • Trapped moisture trying to escape through the paint, painting at temperatures above 90?F.

  • Using oil paints on we/damp surfaces.

  • High humidity, such as rain or heavy dew before the paint dries.

  • Painting a warm surface in direct sunlight, or application over heavy chalk.

 

Solutions

  • Find and remove the sources of moisture.

  • Control moisture with adequate venting, stopping leaks and acrylic caulking.

  • Remove all of the blistered areas and other loose paint by scraping and sanding.

  • Power washing recommended for large areas.

 

Primers & Interior Finishes

  • Priming is essential for stronger adhesion, sheen uniformity, mildew control, and durability.

  • Select a top quality California Paints exterior paint in the color and sheen of your choice.

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