Uni-bond 33 High Temperature Refractory Mortar Cement
This high temperature mortar is a premier quality, alumina-silica, super duty, air setting, mortar that is used for laying, surfacing, and bonding firebrick. It has both air and heat setting qualities. It's excellent working ability, good bonding strength, and high fusion make it a good choice for all types of firebrick construction.
Maximum temperature - 3000F, 1650C.