[Eibhlin ni Sheambrai]

Hi there, not sure what a fire pit is exactly--imagine it is some sort of barbeque. Try Stove Black, which is a stove paint that is heat resistant. Works on hot stove pipes etc. in the house. Comes in a small tin, from hardware, not too expensive, just prepare the surface with wire brush or coarse sandpaper to remove any loose debris, and lash on the stove black!! Cheers, eibhlin.