Pureflex Lined Hoses & Fittings | PTFE-Lined | FEP-Lined | PFA-Lined | Plastic-Lined Hoses | Corrosion Resistant | Chemical Transfer Hoses | Flex Hoses PureFlex SmoothFlexâ„¢ Lined Hose is designed for long trouble free service in a wide range or applications that may involve pressure, temperature and chemical extremes. The hose is available in virgin PTFE for high purity applications and anti-static conductive black PTFE where electrostatic dissipation is required. SmoothFlexâ„¢ is an excellent choice for pharmaceuticals, food and beverage applications, the transfer of viscous media such as paints and adhesives, fluid transfer of corrosive chemicals, and high temperature hydraulic applications.