Vinyl Chemicals

Westlake vinyl resin products are the key ingredients to making some of the world’s most prevalent items, including: residential siding, pipe and fittings for various water, sewer and industrial applications, PVC profiles for windows, doors, fence, and decking along with films for various inflatables, wallcovering, tapes and roofing applications.   The principal products in our integrated Vinyls segment include PVC, VCM, EDC, Chlorine, Caustic Soda and Ethylene.  

Through our European subsidiary Vinnolit, our portfolio also includes important specialty PVC resin products and technologies.


Vinyl Products

Westlake’s Vinyl Products companies include:  NAPCO Pipe & Fittings that manufactures PVC pipes and fittings and LASCO Fittings that manufactures injected-molded PVC fittings.  Dimex is also a Westlake company that manufactures and produces recycled flexible PVC and TPE compounds to use in our own products and supply to other environmentally-friendly manufacturers.  Royal Building Products manufactures residential siding, trim and molding products and  DaVinci Roofscapes develops and manufactures composite roofing products.  Recently, Westlake acquired Boral North America's building products business including:  stone, roofing, windows, siding and trim.  

Westlake also has a global compounding business through Westlake Global Compounds.

In China, through Suzhou Huasu Plastics Company JV Westlake manufactures a wide range of products including PVC resin and a variety of film products.  

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