PAINT INCOMPATIBILITY:
Loss of adhesion where many old coats of solvent-based paint receive a water-based top coat.

POSSIBLE CAUSES:
• Use of water-based paint over more than three or four coats of solvent-based paint may cause the old paint to "lift off" the substrate.

SOLUTION:
• Repaint using another coat of solvent-based paint; although it is preferable to remove the existing paint and prepare the surface - cleaning, sanding and spot-priming where necessary - before repainting with a top quality water-based exterior paint.

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