Alkyd and oil-based paints react and saponify with alkalis present in new masonry to form water-soluble soaps. The paint film turned into soap, becomes soft, sticky, and water-soluble.

Possible Cause:

  1. Incorrect use of product
  2. Application of Alkyd-based (oil) paints to alkaline material (e.g. concrete or cement.)
  3. Humidity problems.
  4. Caustic stripped surface not neutralized.


  1. Remove all paint layers.
  2. Prevent water penetration.
  3. Apply an alkali resistant coating.