CRK will not coat their one-piece knives with anything but the Kalgard. I don't know if they would coat a Sebenza in the Kalgard but I doubt it because of the close tolerances of the knives themselves. Any coating that you have done by an outside company, whether on a one-piece knife or a Sebenza, will most likely void the warranty on the knife.
Just out of curiosity..what knife do you want to recoat?