Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene with numerous applications. PTFE is a thermoplastic polymer that can be molded and shaped at high temperatures. It exhibits extraordinary chemical resistance and a low friction coefficient, making it useful in many applications where those properties are required. It is also hydrophobic, meaning it repels water and can be used as a non-stick coating for cookware.