Solvay Solexis, Inc.

Solvay Solexis, Inc. was the US-based fluoropolymer arm of the Belgian chemicals and advanced materials group Solvay S.A. The entity took shape after Solvay acquired Ausimont, the fluorochemicals and specialty polymers business of Italy's Montedison/Edison group, in 2002. Ausimont's fluoropolymer activities were folded into a dedicated Solvay business branded Solvay Solexis, with US operations registered as Solvay Solexis, Inc. and Italian production and technology roots in the Milan area. The business specialized in fluorinated specialty polymers and fluorochemicals — materials valued for chemical inertness, thermal stability, low friction and dielectric properties. Its best-known product families included PVDF (polyvinylidene fluoride) sold under the Hylar and Solef names, PTFE and modified PTFE, melt-processable fluoropolymers such as PFA and MFA, fluoroelastomers under the Tecnoflon name, and perfluoropolyether fluids and lubricants marketed as Fomblin and Galden. These materials served the chemical processing, semiconductor, automotive, aerospace, wire and cable, oil and gas, and coatings industries. Solvay Solexis operated as a business unit within Solvay's advanced materials and specialty polymers organization, with manufacturing in Italy and the United States and sales into global industrial markets. Its products were sold to OEMs and processors rather than to end consumers, positioning the brand as a high-performance, technology-driven specialty chemicals supplier. Over time the Solvay Solexis name was retired as Solvay reorganized its fluoropolymer activities under the Solvay Specialty Polymers umbrella. The legacy product brands — Solef, Hylar, Tecnoflon, Fomblin and Galden — continued within Solvay's specialty polymers portfolio, and later within Syensqo after Solvay's 2023 split into two listed companies. Solvay Solexis, Inc. therefore survives as a historical corporate and brand layer rather than an active standalone company.

Solvay Solexis traces its origins to the fluorochemicals and specialty polymers operations of Ausimont, an Italian chemicals company that grew out of the Montedison/Edison industrial group and became a leading producer of fluorinated materials, including fluoropolymers and perfluoropolyether fluids developed from Montedison's research in Milan. In 2002, the Belgian chemicals group Solvay S.A. acquired Ausimont from Edison for roughly EUR 1.3 billion, adding fluoropolymers and fluorochemicals to its portfolio alongside its existing plastics, soda ash and peroxides businesses. The acquired fluoropolymer activities were organized into a dedicated business unit branded Solvay Solexis, with the US operating company registered as Solvay Solexis, Inc. The business combined Italian production and R&D heritage with Solvay's global commercial reach. Through the 2000s, Solvay Solexis marketed a broad family of fluorinated products: Solef and Hylar PVDF for coatings, membranes, lithium-ion battery binders and chemical processing; PTFE and modified PTFE for seals, gaskets and linings; melt-processable PFA and MFA resins; Tecnoflon fluoroelastomers for automotive and industrial sealing; and Fomblin and Galden perfluoropolyether fluids for vacuum pumps, semiconductor manufacturing and heat transfer. These products positioned the unit in high-value niches serving semiconductor, chemical, automotive, aerospace and energy markets. As Solvay sharpened its focus on specialty polymers, the Solvay Solexis name was gradually absorbed into the Solvay Specialty Polymers organization, and the standalone brand faded from use. The legacy product trademarks remained, and Solvay continued to invest in fluoropolymer capacity, including PVDF expansion to serve lithium-ion battery demand. In 2023 Solvay completed a separation into two listed companies: the specialty materials and chemicals businesses, including the fluoropolymer portfolio, were placed under Syensqo, while the essential chemicals businesses retained the Solvay name. Solvay Solexis, Inc. is therefore best understood as a historical corporate vehicle and brand layer whose product heritage now lives within Syensqo's specialty polymers portfolio.

• 2023

  Solvay splits into two listed companies; the specialty polymers portfolio, including legacy Solexis products, moves to Syensqo.

• 2002

  Solvay S.A. acquires Ausimont from Edison, creating the Solvay Solexis fluoropolymer business.

High-performance specialty chemicals and fluoropolymer supplier to industrial OEMs and processors; a technology-driven business unit within Solvay's advanced materials portfolio.

• Solef PVDF

• Hylar PVDF

• Tecnoflon fluoroelastomers

• Fomblin perfluoropolyether fluids

• Galden heat transfer fluids

• 2026

  Veolia sues nine companies over PFAS contamination of Delaware drinking water

  Veolia, an investor-owned drinking water supplier, filed a lawsuit in Delaware Superior Court against nine companies, alleging that they contaminated Delaware drinking water sources with toxic PFAS chemicals and failed to prevent the chemicals from entering the waterways Veolia relies on to serve 100,000 New Castle County residents. The lawsuit seeks compensation for a $35 million PFAS treatment system and associated operating costs.

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• 2026-08-12

  Veolia sues nine companies over PFAS contamination of Delaware drinking water[1]Veolia sues nine companies over PFAS contamination of Delaware drinking waterwhyy.org

  Reported: 2026-08-12

  Veolia, an investor-owned drinking water supplier, filed a lawsuit in Delaware Superior Court against nine companies, alleging they contaminated Delaware drinking water sources with toxic PFAS chemicals and failed to prevent the chemicals from entering the waterways Veolia relies on to serve 100,000 New Castle County residents. The lawsuit seeks compensation for a $35 million PFAS treatment system and associated operating costs.

1. 1Veolia sues nine companies over PFAS contamination of Delaware drinking waterwhyy.org