XB-61G/XB-62G is the copolymer of TFE and HFP, with good thermal stability, outstanding chemical inertness, good electrical insulation, and low coefficient of friction, enabling thermoplastic processing methods. XB-61G/XB-62G are high molecular weight resins of low melt index, with low extrusion temperature, high extrusion speed which is 5-8 times of ordinary FEP resin. It is soft, anti-burst, and has good toughness.