... 1.6 g / kg. Mainly used in the system polyester polyester, polyester resin, hygroscopic agents, plasticizers, surfactants, synthetic fibers, ... be used.Production of synthetic resin, PET fiber grade PET polyester fiber, bottle chip grade PETused to make mineral ... antifreeze. Used as automotive antifreeze, is also used for industrial cooling capacity transmission, commonly called arefrigerant. liza ...