Paint isn't curing within the time outlined on the product data sheet.
Causes
- Heavy application
- Insufficient spray booth air flow or high humidity conditions
- Too little flash time between coats
- Improper mixing of product components
- Improper reducer or hardener selection
- Spray conditions too cold
Prevention
- Avoid high film builds
- Perform routine spray booth maintenance
- Mix and apply per the product data sheet
- Use appropriate reducer or hardener for the spray booth conditions
- Do not apply urethane coatings below 55°F
Correcting
- Maintain spray booth temperature above 55°F
