Before revision: 300px|A zinc-Parkerized civilian .45 ACP Springfield Armory, Inc. M1911-A1 pistol Parkerizing , bonderizing, phosphating, or phosphatizing is a method of protecting a steel surface from corrosion and increasing its resistance to wear through the application of a chemical phosphate conversion coating.
After revision: 300px|A zinc-Parkerized civilian .45 ACP Springfield Armory, Inc. M1911-A1 pistol Parkerizing is a method of protecting a steel surface from corrosion and increasing its resistance to wear through the application of a chemical phosphate conversion coating.