Compression Packing Seal Thickness 1 1/4 in Overall Length 50 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 1 1/4 in