Adherence

Adherence

This issue happens when the paint film of the applied paint does not adhere to the surface, and detachment of the same.
 
CAUSES: Poor surface preparation. Surface contaminated with grease and/or dust. Lack of adhesion promoter primer. Use of inappropriate products for the surface. Use of incompatible products. Potential infiltrations of moisture.
 
TREATMENT: Remove all paint from the surface. You should sand and clean the entire surface thoroughly for adhesion. Repair existing infiltrations. Apply primer and compatible paints. On difficult-to-adhere surfaces such as galvanized, aluminium, zinc, etc., you should apply an adhesive primer and followed then by the final finish.