Gunsmithing Cerakote Over Black Iron Nitride QPQ Finish

[Insayn]

Is it necessary to media blast (aluminum oxide) an action that has a black iron nitride QPQ finish prior to applying Cerakote? Or can it be cleaned and coated over it?

 

[triton19]

Re: Cerakote Over Black Iron Nitride QPQ Finish

Must be blasted evenly for proper adhesion.