May 16, 2013 · Page 2- Black T, NP3, Ion bond, Cerakote, Melonite, Black Nitride Gunsmithing & Troubleshooting Cerakoted. It is an oven cured coating. I haven't either and I cerakote firearms on the side. Someone asked about colors in another thread so I posted. Cerakote has very good instructions on prep and application. I personally just use a super cheap smoker to heat/cure whatever I am doing.