It was a happy accident in a New Jersey laboratory in 1938 that gave the world polytetrafluoroethylene, better known as PTFE. By the time post-war commercialization kicked into high gear, this slippery, chemically inert miracle material was rapidly becoming a foundational element of modern infrastructure. For those of us who have spent decades in the mechanical trades, wrapping a threaded joint in white PTFE tape or trusting a PVDF fitting on a harsh-chemical line is pure muscle memory. We use fluoropolymers because they simply refuse to degrade under pressure, heat, or corrosive attack. European Union (E.U.) regulators have concluded that these per- and polyfluoroalkyl substances, known as PFAS and "Forever Chemicals," which do not degrade in the environment, are exactly the problem. They are moving to ban the entire class of per- and polyfluoroalkyl substances, and this move is likely to provide insights and roadmaps for the patchwork of current and developing regulations in the United States (U.S.).

For a refresher on PFAS, I invite you to review my previous columns:

• PFAS: A Growing Concern
• Forever Chemicals in the News
• Understanding United States (U.S.) State-Level PFAS Legislation
• PFAS In the EU: A Look At the EU's Transparent Regulatory Process
• Revisiting "forever chemicals": EPA updates TSCA PFAS reporting rules
• New Mexico's PFAS regulations signal a new regulatory era

For those seeking clarity, call us at Regulosity. Our team specializes in detailed and personalized assessments to help you navigate and engage with the complexities of the regulatory framework.

The REACH reality

In the E.U., the regulatory framework governing these chemicals is administered by the European Chemicals Agency (ECHA) through the REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) system. Under REACH, the burden of proof lies squarely with companies that produce, import, or use chemicals in products to demonstrate that the chemicals can be used safely. The current proposal treats PFAS as a single chemical class—encompassing thousands of substances—because regulating them individually historically led manufacturers to swap one regulated chemical for a slightly different, unregulated cousin. The core logic behind the ban is that PFAS are exceptionally persistent and accumulate in water, soil and human bloodstreams. The ECHA is treating them as non-threshold substances and concludes that any environmental emissions pose an unmanageable risk.

This is not just a crackdown on non-stick skillets using Teflon. The ECHA restriction targets construction products heavily, taking direct aim at wetted pipes, plumbing fittings, valves, sealings and that trusty spool of white PTFE thread sealing tape. We rely on these materials in plumbing and mechanical systems because they are chemically inert, resist corrosion, handle extreme thermal stress, and reliably comply with strict drinking water regulations without leaching harmful byproducts.

The friction of substitution

This is exactly where the regulatory ideal crashes into the reality of the job site. The ECHA European Committee for Socio-economic Analysis (SEAC) recently evaluated whether we can realistically build systems, among other products, without PFAS. In March 2026, the SEAC issued its draft opinion, with comments being accepted until May 25, 2026. Overall, very few manufacturers in the plumbing industry submitted comments. Some manufacturers suggested alternatives, such as eco-brass and Polyphenylsulfone (PPSU), noting that PPSU fittings are already commercially available. In contrast, other manufacturers argued that PPSU and other non-fluorinated alternatives simply fail in harsh chemical environments and struggle to meet the strict hygiene requirements of the E.U. Drinking Water Directive.

The technical data submitted was so contradictory that the SEAC stated plainly that the available information did not allow them to definitively determine whether viable substitutes actually exist for wetted pipes and plumbing fittings. Despite this glaring ambiguity, ECHA is not proposing a broad, long-term exemption for plumbing applications and instead establishes a cap of 25 parts per billion (ppb) for any targeted PFAS and 50 parts per million (ppm) for total PFAS, including polymers.

The global supply chain reality

Why does a mechanical contractor in Ohio or a code official in Texas need to care about a European committee's ruling on PFAS? Because many of the companies that cast the valves and mold the plumbing fittings we install and buy in the U.S. operate on a global scale. Under REACH, a non-E.U. company does not have direct obligations. However, any European-based company that imports products into the EU from a U.S.-based manufacturer must prove that the imported products are fully REACH-compliant; therefore, the U.S.-based manufacturer exporter must comply with REACH. The European market is driving and accelerating the global transition toward PFAS-free chemicals in plumbing products.

Those who follow this column know the U.S. is facing its own reckoning with these chemicals. The U.S. Environmental Protection Agency (EPA) is tightening federal drinking water standards regarding PFAS, and various states are passing their own patchwork of chemical bans. Plumbing products are not trivial to develop, and establishing long-term performance, durability, and commercial life takes time, research, and development. Ultimately, these products require updated product performance standards and building and safety code frameworks that reflect the reality of eliminating plumbing products that contain PFAS.

While the ECHA proposal is not final and the European process for banning these chemicals is slow, chemical alternatives must be identified and tested before regulatory bans are implemented widely. This process of development and validation provides for the best outcomes for consumer safety.