Just recently finished construction on my new propane forge, I have it lined with k23 soft bricks on the sides and roof, and hard fire brick for the floor. I decided to line the forge with satanite with plans for a final coat of ITC coating, striving for forge welding temps. I did my best to follow the mixing/curing instructions that came with the satanite but just ended up chasing cracks with every new coat, and actually ended up with an entire section on one side bulging out. Not sure if I had the moisture content incorrect or if I tried to cure it to quick. I tried to play it safe by doing thin coats and made the mix consistency thicker than recommended and took extra care and time when curing and bringing the forge up to temp. Any help would be great!