Compression Packing Seal, Overall Length 25 ft, Ambient Temperature – Maximum 450 Degrees F, Pressure for Pumps – Maximum 300 psi, pH – Maximum 11 pH, External Coating Petrolatum, Temperature in Steam – Maximum NR, Seal Material Acrylic, Graphite, Shaft Speed – Maximum 2,400 fpm, pH – Minimum 3 pH, Packing Seal Size 5/8 sq in, Pressure for Valves – Maximum Not Rated, Ambient Temperature – Minimum -10 Degrees F, Color Black