Tef Cap is a global supplier of high temperature, chemical resistant Fluoropolymer Products. Smooth Bore & Heat Shrink Teflon PTFE, FEP & PFA Tubing. Manufacturing Heat Shrinkable Teflon Tubing for applications in Aerospace, Automotive, Electrical and Chemical Processing. Heat Shrink Teflon Tubing to meet Mil Spec 23053/11 & 23053/12