Defects of coating
Lumps in the cured powder coating
If you encounter this problem after the powder coatings have cured, perform a step-by-step check of the technology parts mentioned below.
1 ze 4
Compressed air
- impurities in the compressed air
Application equipment
- impurities sucked into the paint booth = checking the paint booth surroundings
- impurities released from poorly maintained equipment:
- conveyor system
- painting equipment (booth, cyclone, powder hoses …)
Paint (powder coating)
- impurities in the paint:
- introduced during powder coating handling (unpacking the box / transferring between trays)
- introduced from equipment during powder coating recycling
- manufacturing defect
Part and its hanging
- impurities adhered to the product before painting:
- insufficient surface pre-treatment
- impurities in the drying oven
Curing oven
- impurities from the oven
- impurities released from the conveyor
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