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DESCRIPTION
Loss of adhesion of a coating under eaves, porches, or other protected areas.
POSSIBLE CAUSE
Under eaves, porches, or other protected areas, the natural cleaning effect of weathering does not occur, and air pollution or other contaminants can build up.
Salts, which can form during the life of the existing coat, were not removed before the new coat of paint was applied. These salts form an invisible film, preventing a bond with a new topcoat.
Paints are applied to old hard and glossy paint films.
Insufficient surface preparation.
SOLUTION
Follow label and data page directions for proper surface preparation methods for the coating. Extra attention should be directed to areas that are not exposed to direct weathering.
Test the coating surrounding any peeled areas out about 6" to 12" to be sure the adhesion is adequate.