Vermiculite board? I've never heard of vermiculite board... Is it some sort of cast refractory w/vermiculite in it? Does it work very well for a forge?
This makes me wonder... has any one here cast their own board? I'd think most people would just use castable to fill whatever forge they have, but maybe you could cast some in a deep cookie pan or something... Maybe add some crushed-up firebrick or vermiculite.
It's just a thought, but maybe you could use the board as a liner over ceramic blanket to keep it from getting eaten up by flux?
Well, it's probably more trouble than it's worth...