Profile: Astral Products LLC specializes in media blasting, ceramic coating, powder coating, and distributing conveyor components. We are ISO 9001:2008 certified. Powder coating can be applied to any electrically conducive part that can withstand 400° F. The process starts with a properly cleaned substrate. Then a thermosetting powder resin is applied by passing it through a spray gun that imparts a low voltage electrical charge. This positively charged powder will attract the negatively grounded part. The part is then heated in an oven. The powder will chemically react, melt, and flow, creating a cross-linked, smooth, even finish. The completed process forms a tough, impact & scratch-resistant finish without sags or runs. Iron phosphate conversion coating is a spray process that cleans the part, and lays down a layer of insoluble crystalline phosphates. This layer creates a surface that paint will adhere to easily, and adds corrosion resistance.