Why the powder coating can not attached to the metal surface well,often fall off
Why the powder coating can not attached to the metal surface well,often fall off
Usually you should check your powder coating gun,such as the cascade if working condition is good. If the guns and equipment are no proboem,please you can try this following way to check the problems.
1. Check if the hanging fixture needs to be cleaned, as too much powder can cause insulation.Use air gun to blow the overhead track,overhead chains,the hangers...
2. If the powder quality is too poor, for example they are all the waste powder or recycle powder,the adsorption ability is not good,then they will fall off on the floor.
3. If the powder comeing out is too large, please adjust it . Adjust the air pressure to 3 kilograms for the first time air and 1 kilogram for the second time air. If the air blow is suitable and then the powder can attach to metal well
4. Check the workpiece and grounding condition. If it is a powder coating line, and if the powder on the track or hanger are cured,then it will influnence the grounding condition.
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