Chemfluor? PTFE Tubing - Saint-Gobain Performance Plastics careful selection of resin type, particle size, temperature and pressure produces smooth, non-porous, dimensionally stable tubing. Made out of polytetrafluoroethylene resin, Chemfluor? PTFE Tubing has the highest working temperature of any fluoropolymer tubing available today. It is widely used as a pressure tubing in general chemical applications such as delivery of natural gas and mineral oils, toxic gas monitoring and paint, varnish or adhesive delivery lines. Chemfluor? PTFE Tubing also services numerous applications in the automotive, electrical and appliance markets.