Microtherm is the World's Leading High Temperature Thermal Insulation Material.\r\n\r\nAt high temperatures Microtherm microporous thermal insulation is up to 4 times better than other insulation materials. \r\n\r\nOur product Microtherm was an improvement on Min-K. It used no asbestos or resin and the manufacturing process, developed in the mid 1960's, led to much lower manufacturing costs. Microtherm insulation was affordable in a wide variety of industries. Microtherm has very low thermal conductivity values at high temperatures as well as at low temperatures. An opacifying powder is uniformly distributed throughout the silica structure to reflect, refract, or absorb infrared radiation generating the characteristically flat curve for thermal conductivities plotted against increasing operating temperatures. \r\n\r\n