A loss of adhesion or separation of the paint film from the substrate.
- Improper preparation of the substrate (sanding and cleaning).
- Omitting or applying an incompatible undercoat to a specific substrate (e.g. aluminum, galvanized, plastics, etc.).
- Insufficient flash/dry time or exceeding the product's maximum recoat time.
- Insufficient film thickness of undercoat, or topcoat.
- Clearcoat finishes:
- Insufficient film thickness of clearcoat.
- Solvent cleaning basecoat before clearcoating,
- Sanding basecoat before applying additional basecoat or clearcoat.
- Basecoat applied too dry.
- Clearcoat applied too dry.
- Baking basecoat before applying clearcoat.
- Using fisheye eliminator in basecoat.
- Incompatible clearcoat.
- Use of incompatible "adhesion promoter".
- Excessive basecoat film thickness.
- Over reduction, under reduction, or incompatible reducer used in basecoat.
Remove the finish in the affected area, featheredge, and refinish.
Or, strip to bare substrate and refinish.
- Clean and prepare all substrates according to product recommendations.
- Use the recommended undercoat (primer) for the substrate being finished. Plastic parts may require use of special primer and flex additive for maximum performance.
- Recoat all products within their recommended minimum and maximum recoat time.
- Apply a sufficient number of coats to obtain the recommended film thickness.
- Follow basecoat/clearcoat application procedures using only recommended/compatible products.
- "Adhesion promoter" should only be used when specifically recommended.