RCF, inorganic. I-A5 is an economical, ultra high temperature insulating material produced by blending alumina-silica fibers, alumina fibers and silica fibers with high purity silica binders. The alumina fibers form a matrix within the material, and give it high temperature capability. The high temperature capability is further enhanced by employing ammonia stabilized colloidal silica rather than sodium stabilized product.Information provided by Morgan Advanced Materials |