Fiberfrax Duraboard HD insulation is a high-density board product that offers the same high level of dimensional and surface uniformity as Duraboard LD insulation.
Duraboard 120ZK and 140ZK is easy to cut and shape with standard tools. These boards exhibit high strength and rigidity coupled with excellent insulating performance and high temperature stability. Duraboard 120LD is particularly suited to applications where reduced out-gassing and/or high definition mechanical machining are required. Fiberfrax Duraboard products are available in a wide range of sizes and thicknesses.