Description: Splitting throughout the paint film thickness.
Identification: Topcoat splitting – Series of straight lines – Primer or substrate may be visible
Probable Cause: Substrate not at room temperature – Component “A” and Component “B” not uniformly mixed – Coating applied over a previously cracked finish or unstable substrate – Excessive total film thickness
Remedy: Remove finish from affected area – Apply primer/sealer – Repaint
Prevention: Remove poor quality/unstable finishes – Check current film thickness before starting. Excessive paint should be removed before refinishing. Mix Component “A” and Component “B” thoroughly – Follow recommended film thickness – Follow recommended flash-off and drying time between coats