Quote:
Originally Posted by Bill Douglas
Thanks Jr. That's really Interesting. I didn't really understand Parkerizing and thought it was just a paint or epoxy finish.
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Here's a quick comparison of some finishes I have on hand. The top 2 are just for reference.
Top to bottom
CZ83 with a painted black slide (1994)
FN Hi Power with a polished blued slide (1951)
Glock 19 Gen 2 with black oxide finish (well worn) (1994)
Walther P1 with parkerized finish (1962)
Bluing, by the nature of black iron oxide, starts a thin layer that appears blue but can be incrementally darker. "Black oxide" finish is chemically the same but is actually primarily used as an industrial finish for stuff such as socket head screws. You can think of it as a thick coating of bluing. Parkerizing comes in a few shades of mostly gray with some greens depending on a lot of factors. It would be hard to call a dark blue "parkerized". There is really no difference between a "black oxide" and a matte dark bluing. The matte look comes from using some kind of abrasive treatment such as bead blasting.