Hoses with a PTFE lining have an inner protective layer against chemical corrosion. The outer layer can be made with rubber or braided fibers to enhance flexibility while withstanding stress. These hoses are utilized where fluid transfer has to be done with harsh chemicals, like in the case of oil and gas where acidic and caustic fluids are transported. The PTFE lining ensures that the hose remains intact and fully functional even when exposed to harsh chemicals