Poor Adhesion Of The Powder Coating
1. Workpiece surface degreasing, rust removal, phosphating and other surface treatment is not good
Solution: Strict control of workpiece surface treatment process
2. Insufficient curing
Solution: Pls reference the last blog
3. Base material has changed
Solution: Contact with base material suppliers
4. Quality problems of the powder itself or quality deterioration in storage
Solution: Replace powder coating or use after conversion