Plywood Checking

 Cause

Breakdown of a paint system applied to plywood which has “checked” (the ply surface splitting) allowing moisture to enter and causing detachment of the paint coatings.

Solution

Scrape back to a firm edge by removing all loose and defective paint. A system based on glass fibre weave membrane may help to overcome further problems. Textured paints have proven to be more successful on this type of substrate than smooth coatings.

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