Occurs in protected or shady areas where condensation collects sulfur dioxide from air. These salt-like crystals are washed away by rain in areas not protected. Painting over these crystals will cause peeling as the salts draw moisture through the paint.
PEELING PROBABLE CAUSES
Improper surface preparation to painted surfaces located in areas protected from weather. Condensation causing a collection of sale crystals from the air. If salt deposits aren't removed, new paint will peel. Lack of adhesion of a topcoat over a hard, shiny surface.
INTERCOAT PEELING SOLUTIONS
Wash and rinse thoroughly before repainting. When dry, remove all loose paint with a scraper or wire brush. Sand all glossy areas and remove sanding dust. Remove mildew if present by washing with a mixture of 1 part bleach, 3 parts water.
PRIMERS & EXTERIOR FINISHES
Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality exterior paint in the color and sheen of your choice.