• Manifestations
  1. The paint film suffers deterioration.
  2. As a result there is a rapid and excessive loss of luster from the top coat.
• Causes
  1. Using an interior paint to cover an exterior surface.
  2. Using a low quality paint product.
  3. Applying a gloss alkyd or oil-based paint to a surface that stands in direct sunlight.
  4. The fact is that direct sunlight can degrade paint’s binder and pigment. This will cause chalking as well as poor gloss retention.
  5. NOTE: All paints eventually suffer some loss of luster over time.
  6. It is the lower quality paints that lose it within a short time period.
  7. Top quality acrylic latex paint is resistant to UV radiation; but, oil and alkyd binders absorb it and that causes binders to degrade.
• Solutions
  1. Prepare the surface for paint exhibiting poor gloss retention in a way similar to what is used for surfaces affected by chalking.