Many European bulk buyers often receive defective handbags: after repeated folding, the edge coating cracks and peels off.
The 3 Root Causes From Workshop Production
1：Improper Edge Paint Material
Low-grade oil edge paint lacks flexibility. Hard paint cannot follow the leather’s deformation, so it fractures easily when folded.
2：Insufficient Drying Temperature
If the oven temperature is lower than 65℃ and baking time is less than 12 minutes, the edge coating cannot fully cure. Semi-dried paint will crack quickly.
3：Too Thick Coating
Double-layer thick oil edge makes the surface rigid. Thick paint cannot bear repeated bending stress.
Practical Solutions For Bag Factories
Material Upgrade：Switch to flexible eco-friendly edge paint that meets REACH standards for European orders. The soft formula resists repeated folding without cracking.
Stabilize Baking Parameters：Set oven temperature between 65℃ to 75℃, keep baking time 12–15 minutes to ensure full curing.
Control Coating Thickness：Apply edge paint in two thin layers instead of one thick coat. Each thin layer dries completely before the next application.
