Bluewind Vermiculite Light-weight Insulating Firebrick is custom produced for wall fire board applications for industrial and commercial use. Made of asbestos free expanded silver vermiculite, this type of fire brick offers not only thermal insulation but also increases the strength of the furnace structure. It’s manufactured through high-temperature sintering so that the shape and performance of firebrick can be maintained even at high temperatures. It is ideal for many industries with high thermal loadings since it meets the needs of proper thermal control.