Ceramic Fiber yarn, Rope, Cloth contains no organic agents or processing additives. It therefore retains its physical and chemical properties at very high temperatures and does not decompose into hazardous substances, as happens with many normal ceramics.Compression packing of Ceramic Fiber Product Hi-Temp are recommended for very high temperature static sealing duties or slow rotary applications. It replaces ceramic yarn packing and radiation seals on BOS plant, and ceramic packings and vessel lid seals on secondary steelmaking plant.