I`d like to find some type of blade coating to put on my handmades to keep them from rusting ,and also for the "tactical look". I`ve done one knife with enamel primer and flat black paint and it looks good but I know it won`t hold up very well under hard use. I tried blueing one and it doesn`t blue,hardly any discoloration at all. What`s my best bet,some type of parkerizing ,black oxide,K coat etc.? Marcus