Gland Packing PTFE Carbon Fiber Packing Square-braided carbon fiber yarn, impregnated with PTFE dispersion and lubricated. excellent heat-resistant and chemical-resistant packaging. Suitable for corrosive liquids, organic solvents, steam, hot water, hydrocarbons, oils, rotary engines, valves, rotary pumps, agitators, flanges. etc . pH : 2 – 12 Max Temperature : 300C ( 570 ) Max Pressure : 20 kg Gland packing non asbestos