Teflon® material reinforced with special glass fiber fabric, it has got great tensile strength and a wide range of chemical resistance including sulfuric acid, nitric acid and other strong oxidizing chemical. UCAR 323 LC® exhibits creep deformation of less than 3% in temperatures ranging from -212º C to 245º C. It maintains a higher bolt torque retention and a better seal in thermal cycling applications and with continued exposure to elevated temperatures.