Westlake Plastics Company

Westlake Plastics Company strives to provide the highest quality extruded and compression molded thermoplastics. Our mission is to exceed market expectations while achieving complete customer satisfaction. We accomplish this mission through continuous process improvement, introducing innovative engineering plastics and searching out new opportunities for continued growth. We conduct our business in a supportive family atmosphere which includes our employees, customers and suppliers.

All Westlake Plastics products are manufactured at Westlake Plastics extrusion plant in Lenni, PA or Westlake United's compression molding plant in Mayfield, PA. Sales and administrative functions for both locations are performed at our headquarters in Lenni. In addition, a west coast sales office is located in Placentia, CA. A highly knowledgeable and experienced technical support staff is available to provide both product and materials information, including:

Material selection

End-Use Design Assistance

Sampling for Prototyping

Specification Writing

Machining & Fabrication (including welding ) Information