Boiler Refractory Caulking & Mortar

Fiberfrax® refractory fiber caulk 2300° F can be used in patching and insulating hot cracks, joints, seams in high temperature furnaces and kilns and Boiler doors. Refractory caulk is an essential in high temperature industrial applications.

Green Patch Refractory Mortar is a 3200° F wet, air-setting, and thick patching mortar that can be fired-in faster than the usual high alumina mortars. Boiler Supplies Boiler Patch F is a 3000° F refractory paste that is super duty, fine grained, and air-setting. This Boiler Patch F exhibits a thorough bonding strength and low shrinkage in response to its chemical composition as well as low moisture content.

Boiler Supplies Milcote 3000 Wet Refractory Mortar is a wet, super duty, and air-setting mortar that services a temperature limit of 3000° F. This product provides excellent bonding strength which can be used with high as well as super duty fireclay brick and insulating brick.