Westlake engineers and manufactures rigid and flexible vinyl compounds. Our rigid vinyl compounds are used in a wide range of applications and production processes. Our injection molding compounds are used in the production of computer housings and keyboards, electrical outlet boxes and pipe fittings. Our extrusion compounds are used in window and furniture profiles and sheets for household fixtures and decorative overlays. Our blow molding compounds are primarily used for both food-grade and general purpose bottles used to package cosmetics, shampoos, charcoal lighter fluid, water and edible oils. Our flexible vinyl compounds are used in wire and cable insulation and jacketing, automotive window encapsulation, custom profiles, automotive trim and body side molding, and flexible tubing.

In 2019, with the acquisition of Nakan, Westlake Compounds expanded globally and added important specialty products and technology to its portfolio.  Westlake's compounding business now has facilities worldwide in China, France, Germany, Italy, Japan, Mexico, Spain, the United States and Vietnam, as well as a world-class research facility in France and several application laboratories.

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