Painting Over Powder Coating
How safely can they apply their wet paint over our powder coated parts?
Q. I’m a custom coater who supplies powder coated parts to industrial customers. We apply mostly epoxy and polyester powder coating by electrostatic spray guns. Many customers would like to paint over these parts for various reasons. How safely can they apply their wet paint over our powder coated parts? K.B.
Better adhesion, enhanced corrosion and blister resistance, and reduced coating-part interactions make pretreatment a must.
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