“WANKAI” Brand WK-821 is a TPA-based polyethylene terephthalate (PET) copolymer resin designed for bottle-grade applications. Its high clarity and brilliant sparkle make it ideal for manufacturing bottles and containers.

WK-821 is a high molecular weight polymer suitable for a wide range of container production, including sheets, edible oil bottles, white wine bottles, and certain medical and agrochemical containers.

Bottles produced from WK-821 resin exhibit excellent barrier properties, high chemical resistance, and high crystallinity, meeting demanding performance requirements.