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.  

Westlake’s Vinyl Products companies include:  DaVinci Roofscapes that develops and manufactures composite roofing products; NAPCO Pipe & Fittings that manufactures PVC pipes and fittings; Royal Building Products that manufactures residential siding, trim and molding products; and Westech Building Products that fabricates rigid profiles for residential construction including decking and railing  as well as for windows and patio doors 

With the acquisition of Vinnolit in 2014, our European operations and portfolio expanded to add important specialty PVC resin products and technologies.

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