Zydex is a pioneer of polyester sizing products globally. Zydex polyester resin sizing products form nano-level dispersion that results in outstanding filament-to-filament bonding. Benefits of polyester filament sizing includes lower pick up, lower cure temperature and easy desizability resulting in energy and resource conservation for the user. Properties imparted include excellent wet and dry abrasion resistance and high blocking resistance under humid conditions. Zydex range of polyester products are designed to easily replace acrylic sizes requiring the same desizing processes that are typically used for acrylics such as caustic soda desizing instead of soda ash desizing recommended for other PET resins.