I built a gas forge a few years back out of a pearlite insulator, but I never put a refractory coating so it began melting pretty quickly, I ditched it and made two solid fuel forges some time later but recently as it got colder I decided to work on my propane forge so I could work in my dads shop. The forge is a cylindrical stainless steel can with a pearlite insulator (I forget the exact recipe but I think it was something along the lines of a pearlite aluminum oxide mix) When I came back to the forge I had more knowledge so I acquired two pounds of satanite and installed fire bricks in the base and sides for better structural support and insulation. The Satanite bonded to the firebricks very well, but when I thought everything was going well on the second coat almost half of the satanite delaminated from the pearlite ceiling. In the end I lost pretty much all of my satanite and ended mixing the leftover slurry with firebrick and pearlite "mud" as a temporary patch for the exposed section of the ceiling. I don't really have any confidence that the temporary patch will hold the heat terribly well but I cant see many alternatives with my limited supplies. What refractory options do I have, and what materials would be best to fix my problem? (I don't have much cash but I could spend a bit if I need new materials)
(Note: I'm having trouble uploading a photo to the topic, I tried to describe what I could but if anyone knows what the problem is I could post a few pictures.)