Pro tip: I wasted $200 on a 'miracle' forge coating that flaked off in a week.
The salesman swore it would triple my forge's life, but after the first real heat cycle it just peeled away like old paint, so what's a reliable brand for basic refractory cement these days?
Honestly, I've had the opposite happen. That stuff saved my old forge when I put it on right. Maybe it was a bad batch or the surface wasn't prepped clean?