Bluewind Vermiculite Insulating Firebrick is the best in all types of isolation and is made to withstand extreme temperatures. It has a controlled pore structure which has better thermal performance than a lot of the other options available. It can be used as a transition refractory lining or insulating backup as well. It enhances insulation efficiency and prolongs the lifetime of industrial furnaces. This is exactly what industries require whether it is metallurgy, ceramics, or glass industries.