Only special high temp types. Ordinary commercial/decorative coating can start to fail at temperatures below 100°C.
For a fire-guard, I'd avoid any kind of polymer coating. A straightforward gun-smithing type of hot or cold bluing will provide a pleasing aesthetic and adequate corrosion resistance, and it won't evolve toxic smoke if it gets burnt.
Ah, good knowledge. I shall speak to the local painters and see what they offer, to be fair its to cordon off an inglenook, so the guard will be a metre away from the log burner at all points anyway.
Only special high temp types. Ordinary commercial/decorative coating can start to fail at temperatures below 100°C.
For a fire-guard, I'd avoid any kind of polymer coating. A straightforward gun-smithing type of hot or cold bluing will provide a pleasing aesthetic and adequate corrosion resistance, and it won't evolve toxic smoke if it gets burnt.