Naw, it's just hi-heat canned spray, several coats, dried in between & heat set, then a couple coats of clear, hi-heat with heat set.....
To heat set just run coals at about 400° for 1/2 hour, spread over the coal grate evenly.....
I need to re-do this as somebody at my friends' house left it down & the dawgs got to the bone & chewed it pretty good.....