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For Your Home
Resolving Common Paint Problems

Exterior paint problem with paint incompatibility PAINT INCOMPATIBILITY

Loss of adhesion where many old coats of alkyd or oil-based paint receive a latex top coat.

POSSIBLE CAUSES:

  • Use of water-based latex paint over more than three or four coats of old alkyd or oil-based paint may cause the old paint to "lift off" the substrate.

SOLUTION:

Repaint using another coat of alkyd or oil-based paint. Or completely remove the existing paint and prepare the surface - cleaning, sanding and spot-priming where necessary - before repainting with a top quality latex exterior paint.