About Westlake Plastics

Westlake Plastics Company, founded in 1951 and headquartered in Lenni, Pennsylvania, specializes in extrusion and compression molding technologies for high-performance thermoplastics. By combining advanced manufacturing techniques, research, and sustainable practices, the company produces high-quality stock shapes, including rods, sheets, and films, tailored to diverse industry needs. Westlake Plastics has played a key role in industries such as medical, aerospace, defense, semiconductor manufacturing, and food processing by supplying materials that meet performance standards. Its product portfolio includes high-performance thermoplastics such as PEEK (Polyether Ether Ketone), PPSU (Polyphenylsulfone), PEI (Polyetherimide), PVDF (Polyvinylidene Fluoride), and PSU (Polysulfone). These materials offer thermal stability, mechanical strength, and chemical resistance, ensuring durability and reliability in demanding applications.

Styraclear Polystyrene

Styraclear Polystyrene by Westlake Plastics is a polystyrene (PS) grade. It is suitable for processing by compression molding. It is recommended for medical/ healthcare, foam, sheet and food contact applications.

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HIPS—HIGH IMPACT POLYSTYRENE

HIPS—HIGH IMPACT POLYSTYRENE by Westlake Plastics is a natural colored, paintable high impact polystyrene (HIPS) grade. Exhibits excellent dimensional stability, excellent machinability, low strength, good adhesion and is easy to fabricate. Is insoluble in water and recommended for food processing applications, machined prototypes, housings and covers. HIPS—HIGH IMPACT POLYSTYRENE complies with FDA and UL 94 HB flame rating.

Sustainable option

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LENNITE® GUR1020

LENNITE® GUR1020 by Westlake Plastics is a controlled, traceable, stress relieved, fabricated, ultra high molecular weight polyethylene (UHMWPE) grade produced from premium resins. It is available as stock material in Type I and II resins. It can be sterilized by ethylene oxide (EtO) gas, cold sterilization and limited gamma irradiation. It is suitable for processing by ram extrusion method. It is recommended for total hip and knee joint prosthesis, various other surgical implants and medical devices. LENNITE® GUR1020 complies with ASTM F-648 and ISO 5834-1/2.

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