Flojet marketing supplies graphite natural flexible foil [c > 98%]. Their special duty graphite reinforced braided packings and flexible foils are offered to use in the sectors involving extreme conditions of temperature, pressure and corrosion. These foils are specially designed for valves, pumps, compressors and similar static or dynamic applications. The tools` specifications are: temperature range: -200°c to 500°c; speed: 18 m/sec; pressure: 4,000 psi; and ph: 0-14.