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Originally Posted by callmej75
I thought it was a better conductor for a ground? Am I wrong? If so please let me know and I'll use a regular grounding rod.
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typically speaking there is no need for earth ground in powder coating. the circuit is only needed to run from the control box to the part on the groound side, and from the box to the gun. static charge takes care of the rest. if you are grounding the clamp and parts to earth ground this could possibly be causing you to not get full charge on the powder transfer to part. just a thought.