Fiberfrax® Duraboard® products are a family of rigid, high-temperature ceramic fiber boards manufactured in a wet forming process using Fiberfrax alumina-silica fibers and binders. All Duraboard products offer low thermal conductivity, high temperature stability, uniform density, and excellent resistance to thermal shock and chemical attack. Duraboard 2600 insulation is a high-temperature insulating board designed to provide high stability at elevated temperatures. This capability is achieved by manufacturing a board formulated with a blend of Fiberfrax® alumina-silica fibers and Fibermax®, Unifrax's patented polycrystalline mullite fibers. This unique formulation controls thermal shrinkage to a level less than 1.0% after 168 hours at 2450°F / 1343°C. Description: Formed from a special blend of Fiberfrax alumina-silica fibers and Fibermax® Mullite fibers. These boards give high stability at temperatures up to 2450°F / 1343°C. Information Provided by Unifrax I LLC |