Close-up hells forge ceramic blanket Published December 12, 2021 at 816 × 612 in No Bullshit Guide To The Best Blacksmith Forges ← Previous A close-up of the hell’s forge ceramic blanket. This is BEFORE I applied the HELLCOAT 3000 Refractory Coating. The inside looks more like clay once the coating has been applied. A close up of a ceramic blanket for a blacksmith forge