Shop for ECTFE (Halar®) rods. Strong, stiff, and more dimensionally stable than many other fluoropolymer materials. ECTFE exhibits excellent electrical properties, a low coefficient of thermal expansion, and low moisture absorption. It has exceptionally smooth surfaces which make it an ideal choice for many high purity applications in the pharmaceutical and semiconductor industries. Stocked materials typically ship in 2-5 business days. Can’t find what you need? Get a quote.