Kaowool 2600 degree Fahrenheit blanket insulation. Also known as cerachem 8#1" . This is high efficiency refractory blanket insulation used to create your own forge or foundry .
It's 1 inch thick by 24 inches wide and sold by the linear foot.( i.e.: two square feet per purchased foot)
you would typically use 6 or 7 linear feet to do a