Nope a chemical process.
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I don’t like peas and carrots either, but it sounded cool when Forrest Gump said it.
Media blast with 120 aluminum oxide after degreasing, then into a mix of manganese phosphate and hot water basically. bubbles for a while about 10-15 min then wash off with lots of water. At that point you can soak in any light oil or post parkerizing solution, or on to Cerakote.
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So its chemical etching in a way
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How do you guys find out how to do all this stuff
Now the cerekote .. what kind of a sprayer do I need . And does it have to be oven dried ? Or air dried ?
Has anyone ever tried to dip gun parts in cerekote. ??
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Its more like a type of rust then etching.
The tooth from the AlOx media blasting gives it a lot of suface area to hold oil or cerakote.
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No dipping.
Most types need oven but there is C Series that is air dry.
High quality lphv 0.08 tip.
Super dry air. (Same for media blaster) I run a cheap oil/water, a nice coalesing filter, after that a dessicant filter.
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There use to be a master smith on the full 30, he mentored me a lot.
Guy on the 1911 forum helped me with the parkerizing and cerakote over parkerizing process. Just got to ask a lot of questions and not be afraid to screw stuff up.
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@albroswift another question is cerakote a one layer application 
or do you do more than one coat ??
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One coat for 1 color.
Between less then a half mil and a mill + depending on the product.
If you want masking/stencils flash each coat for 15-20 minutes at around 180F and it is hard enough to apply/peal high temp masking but will still accept more coats. After full cure can’t apply anymore.
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