Darken a Blade with Parkerizing Media

I have been asked a lot lately about how I parkerize a blade. So, in this video I walk through the steps I use to parkerize a knife. 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.

Materials
Solution: https://www.brownells.com/aspx/search/productdetail.aspx?sid=3965&pid=24778
Hotplate: https://www.amazon.com/gp/product/B00C8C5I7I/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1