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Powder Coat Aluminum Comparing with conventional paint,powder coating is much more durable and is commonly applied on substrate parts that will be long term exposed to tough environments.That maybe worthwhile to DIY if there are lots of aluminum parts around you required for powder coating.It is no more difficult to buy a powder coating gun on your market than spraying paint . Instructions 1.Clean the part completely,removing off any paint,dirt or oil . Make sure that any components not to be coated (such as O-rings or seals) have been removed. 2.Mask any area of the part not be coated using high-temperature tape. For blocking off holes, purchase reusable silicone plugs that press into the hole. Mask large areas by taping on a piece of aluminum foil. 3.Set the part on a wire rack or hang it from a metal hook. Fill the gun’s powder container with powder no more than 1/3 full. Connect the gun’s ground clip to the rack. 4.Spray the part with powder, coating it evenly and completely. For most parts, only one coat will be necessary. 5.Preheat the oven to bake. Insert the part into the oven being careful not to bump the part or touch the coating. Consult the documentation for your coating powder about necessary temperature and curing time. 6.Remove the part from the oven and let it cool. Remove any masking tape or plugs. Notes: Make sure the gun is plugged into a properly grounded outlet. The gun cannot work without a ground connection.

Let’s start looking at what happens in the space between the spraying gun and part during the electrostatic powder coating application procedure. In Figure 1, the high potential voltage applied to the tip of the gun’s charging electrode creates an electric field (shown by red lines) between the gun and grounded part. This bring about the development of corona discharge. A great amount of free ions generated by the corona discharge fills the space between the gun and the part.Read More …

Ultra-thin powder coating technology is not only an important development direction of powder coatings, but also one of the problems the world is still plagued in painting circles. Powder coatings hardly accomplish ultra-thin coating,that not only greatly limit its application scope ,but also lead to thicker coating (generally 70um above ) . It is an unnecessary waste costs for most applications which do not require thick coating . To solve this worldwide problem to achieve ultra-thin coating ,the experts haveRead More …