Loss of adhesion of a coating under eaves, porches, or other protected areas.
- 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.
- 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.