sw-art-cracking

DESCRIPTION

The splitting of a dry paint film through at least one coat. In its early stages, the problem appears as hairline cracks; in its later stages, flaking occurs.

POSSIBLE CAUSE

 
  • Use of a paint that has lower adhesion and flexibility properties.                    
     
  • Over-thinning or over-spreading the paint.
     
  • Inadequate surface preparation, or applying the paint to bare wood without first applying a primer.
     
  • Excessive hardening and embrittlement of paint as it ages, the coating loses the ability to expand and contract with temperature and humidity changes.

SOLUTION

See Lead Information.
         

  • Remove loose and flaking paint with a scraper or wire brush, sanding the surface and feathering the edges. If the flaking occurs in multiple layers of paint, use of a spackling compound may be necessary to make a uniform surface. Test the coating surrounding any peeled areas out about 6" to 12" to be sure the adhesion is adequate.
     
  • Prime bare wood or plaster before repainting.
     
  • Apply the coatings at the recommended spreading rate (e.g. the recommended total area that can be painted) and using the recommended thinning rate (e.g. the recommended percentage that a coating may be diluted).

INTERIOR

EXTERIOR