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1. The first step of powdercoating is to thoroughly clean the metallic parts. The front suspension parts were pre-baked in the oven at 500º F. This would sweat out any contaminant, such as oil or grease. The parts are then allowed to ambient cool before being placed in the media blasting cabinet. Inside the blasting cabinet the parts were blasted using aluminum oxide 120 grit media to remove any dirt, oil, grease, rust, or any other contaminates. This photo of the McGaughy's spindles shows the before media blasted spindle and the after media blasted spindle. Any contaminant on the surface will cause delamination or blistering of the powdercoating from the part's surface.