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Zinc Phosphate Parkerizing is a process that is user-friendly and is known for creating a non-metallic coating of zinc phosphate on iron and steel. This coating is highly resistant to corrosion, very durable, and long-wearing. The traditional color of the coating is charcoal-gray, which is suitable for creating non-glare finishes on tactical and hunting guns, as well as for restoring older military guns. The uniform grain structure and even thickness of the coating provide an excellent retention for lubricants and rust preventives. This coating also serves as an ideal base for spray-on/bake-on finishes such as Brownells Baking Lacquer, Aluma-Hyde II, and Teflon Moly Gun Finish. The porous surface produced by Zinc Phosphate Parkerizing actually bonds the final finish to the gun, resulting in a durable and long-wearing coating. This process is very clean and leaves almost no sludge buildup around the heating coils in the tank. Switching to Zinc Phosphate Parkerizing from regular Parkerizing is easy and straightforward - just change the chemicals in your tank.