Blocking Paint

Definition:
Paint blocking is when layer of paint sticks to another paint layer from another surface. This usually happens when a layer of paint hasn’t completely dried, for example a layer of paint on a door sticks to another paint layer on a wall. When a layer of paint sticks to another, usually that layer will peel off and stick to another surface.

 

Causes:
• Using slow drying paint or oil based paint that has been stored for too long.
• Application of paint layer before the previous layer has completely dried.
• Too much paint applied to surface.
• Using low quality paints not made to prevent paint blocking.

 

Solutions:
• If paint layers are stuck to one another, sand the surface to get rid of stuck paint layers.
• Clean off dust and dirt, and then apply Mowilex Undercoat Tembok to the surface.
• Use Interior or Exterior paints with anti blocking (non stick) properties.
• To prevent repeated paint blocking, use quality primers.