I have used Gun-Kote on about 10 blades of O-1 steel. Polished to 220 grit, cleaned with acetone and got very good adhesion without sandblasting. Used one large tactical blade to chop up a pine 1X12" board into kindling and the coating held up very well. It is more abrasion resistance then Cerakote . Use very light coats or it will run very easily, bake at 300 degrees for 20 minutes and you have a very tough coating that will protect carbon steel from rusting.
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