Compression Packing Seal, Thickness 3/8 in, Overall Length 5 ft, Material Fiberglass, Color White, Edge Shape Square, Minimum Temperature Not Applicable, Maximum Temperature 1,380 Degrees F, Standards Not Applicable, Compatible Product Type Not Applicable, Density 75 lb/cu ft, Tensile Strength 3,200 N/mm, Features Seals are Flexible and Conform to Uneven Surfaces, Square 3/8 in