The Bluewind Vermiculite Insulating Firebrick is specifically built to keep performing under particularly high temperature, high pressure environments. The firebricks are made out of non-asbestos expanded silver vermiculite and inorganic fillers and therefor has an even porosity and increases thermal insulation performance. The firebrick is suitable for an extensive range of industrial furnaces, providing seamless transition refractory lining or backup insulation. Durability is a great aspect of this product too as it increases the lifespan of your equipment as well as decreases energy usage, making it a great product in any industrial setting.