Hi Stephen
Not much experience with this type of coating I'm afraid. I assume this treatment is primarily to seal micro-cracks in hard chromium plating as a posed to providing a coating. The conformal type ceramic coating processes appear mainly as proprietary processes, like the "Monitox" coating. These can also be used for sealing thermal spray coatings, particularly for high temperature service where organic sealers fail. I know Aremco (
http://www.aremco.com) did market some ceramic sealers, so may be worth speaking to them.