Not at all.  We use Cordierite ceramic in our grill which has a very high thermal resistance.  We want you to enjoy all the high heat grilling and searing that the Slow ‘N Sear offers without concern for the durability of your grill.  You may notice some slight imperfections in the finish of your grill, but this is just a by-product of the manufacturing process and in no way affects the performance or durability of your grill.  Enjoy!