The packing is made of white asbestos fiber cords impregnated with PFTE dispersion,(Addition of lubricant is optional)It is soft in texture and suitable as the sealing of pumps for liquidated chemicals.Howerver,packing impregnated with lubricant is recommended for use with reciprocating pumps or for the sealing in places where linear velocity is up to 10m/s. Application: Max.Working temperature:260°C Max.Working pressure:10.0Mpa PH vclue:2-12