Powder Coating Wheels

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General reasons for pin holes in a process of powder coating wheels

You will be experiencing pin holes when you powder coat wheels of cast aluminum . Pin holing can be caused by several different things, in this case I would say that the alloy wheels are porous and the air in the pore is expanding when the parts are heated in the oven. The air then escapes into the powder film when the powder is in the liquid or melted state and as the powder solidifies during the curing process theRead More …