Why ceramic coating? The steel already has the TOUGHEST coating / treatment you can put on a gun ~ Melonite (tennifer). The coloring is a black oxide. The ceramic coating will COLOR the slide and do nothing more to protect the steel. In act, you can always get the slide re oxided if you ever need it. Ceramics DO in fact scratch and wear. The rifle manufacturer I work for uses Cerikote. It is the best ceramic coating on the market. It IS very durable but is NOT bulletproof. It cannot be touched up. You must sand blast the old coating off & respray the finish to fix it properly. It's a gun, not a Rolex. Leave it alone unless you have $$$ to piss away. Sort of like putting 20" wheels on a pinto.