Occurrence
Lack of adhesion of the coating to the substrate or of individual coats to each other (poor inter-coat adhesion).
Causes
-
Insufficient cleaning of the substrate from silicone, oil, wax, rust, etc.
- Inadequate surface preparation
- Use of the wrong primer
- Primer and/or topcoat too thin
- Coating too thick
- Inter-coat drying time too short
Prevention
-
Thoroughly clean and prepare the surface before painting
- Use well-matched primers
- Observe the product application parameters specified in the technical data sheets.
- Apply coatings of sufficient thickness
Removal
Remove the coating from an area slightly larger than the one with the defect. Recoat.