
Poor Adhesion to Substrate
The paint film does not adhere to the substrate properly; it peels off here and there. This is due to Poor Adhesion to the Surface.
Possible Causes |
Solutions |
Unclean surface | Clean the surface with volatile solvent |
Lifting of Primer of Sealer from the Surface – An Incompatible Finish. The Solvent in the Finish coat lifts the primer from the surface. | Ensure to use recommended primer and finish coat together. Though the film will dry and appear good, primary adhesion will be ruined. |
Sanding the wood to a Smoother consistency. The problem is rampant in hardwoods that have closer grains. |
• Use 120 grit sand paper. for wood that have closer grains. • Use 120-180 Emery paper for softwoods and wood with open grains. |
Stain Comes off along with the sealer | Apply a thin coat and then, wipe the stains off. |
Applying Stains that are too Heavy. Either they are not wiped off or they did not dry, after application. | Ensure that the stain is dry, prior to applying the sealer. |