KT Refractories Refractories offers high alumina Castable Refractories, insulating Castables, or refractory concretes are predominantly dry, granular refractory mixes designed to be mixed on site with water and capable of curing to a stable dimensional form through hydraulic or chemical setting. 
55 lbs. 
For full product details, please visit: https://www.ktrefractories.com/products/castable-refractories