Why Paint Jobs Fail

CHALKING:

Chalking is caused by the deterioration of a paint film. The resultant loose powder (chalk) is a barrier to adhesion for most paints. Latex paints in particular will adhere to the chalk, but not to the surface, eventually resulting in paint failure.

All chalk should be removed by pressure washing, using a chemical cleaner designed to remove chalk. A primer designed for such deteriorated surfaces, like Bennette Acrylic House Paint Primer, 7-225, should be use prior to repainting.