Parkerizing is usually considered to be an improved zinc or manganese phosphating process, and not to be an improved iron phosphating process, although some use the term " parkerizing " as a generic term for applying phosphating ( or phosphatizing ) coatings that does include the iron phosphating process.
32.
The patent for this zinc phosphating ( Parkerizing ) process ( utilizing strategic compounds that would remain available in America during a war ) was granted to inventor Romig of the American Chemical Paint Company in 1938 as, just prior to the loss of easy access to manganese compounds that occurred during World War II.
33.
With these process improvements, the end result was that a low-temperature ( energy-efficient ) zinc phosphating ( Parkerizing ) process, using strategic materials which the United States had ready access to, became the most common phosphating process used during World War II to protect American war materials such as firearms and planes from rust and corrosion.
34.
With these process improvements, the end result was that a low-temperature ( energy-efficient ) zinc phosphating ( Parkerizing ) process, using strategic materials which the United States had ready access to, became the most common phosphating process used during World War II to protect American war materials such as firearms and planes from rust and corrosion.
