Heat resistance The temperature of the thermal deformation type is between 200~220 ℃, the continuous use temperature is between 180~200 ℃, and the UL temperature index is 180 ℃. Hydrolysis resistance It can withstand hot water or steam at temperatures ranging from 150 to 160 ℃ and is not susceptible to acid or alkali attack at high temperatures. Temperature dependence of modulus The basic modulus remains almost unchanged from -100 ℃ to 200 ℃, especially better than any thermoplastic resin above 100 ℃.