Boiler Insulation is higher temperature thermal insulation made from ceramic or mineral wool insulation fibers. These materials come in both rolls or boards and are pinned or strapped onto the boiler casing or exhaust breeching. Ceramic Blanket insulation comes in a wide variety of thicknesses and can be layered to stagger joints to prevent heat loss. High temperature insulating cements can be used as furnace insulation or applied in gaps and other hard to insulate areas. Cotton Canvas and mastic can be wrapped around the fibers to seal the insulation system and prolong the insulation lifespan by making the insulation more durable to mechanical abuse. FRK Faced insulation products provide a clean finished appearance as well.