Cissing / cratering
What it means
Cissing or cratering can produce small circular defects where the wet coating retracts from areas of the surface. Surface contamination and surface-tension effects are important checks.
What to check
- Surface preparation and cleanliness
- Compatibility of previous and new coating
- Application method and film build
- Drying/curing conditions
- Manufacturer instructions and technical data
For a product-specific diagnosis, identify the exact product and surface and consult the current manufacturer guidance.