--- title: United Felts EnviroCure-Felt description: EnviroCure®-Felt is a great alternative to styrene-free methods of CIPP liner pipe rehabilitation. Talk to one of our pros today! image: https://insights.vortexcompanies.com/hubfs/IMG_1217.jpeg --- [![](https://insights.vortexcompanies.com/hs-fs/hubfs/UF_Logo_UF_Vertical_Vortex_CobaltWhite.png?width=159&height=70&name=UF_Logo_UF_Vertical_Vortex_CobaltWhite.png)](https://unitedfelts.com/) [Vortex Companies](https://vortexcompanies.com/)   |   [United Wetout](https://unitedfelts.com/united-wetout/)   |   [United Felts](https://unitedfelts.com) [![](https://insights.vortexcompanies.com/hs-fs/hubfs/UF_Logo_UF_Vertical_Vortex_CobaltWhite.png?width=159&height=70&name=UF_Logo_UF_Vertical_Vortex_CobaltWhite.png)](https://unitedfelts.com/)[Vortex Companies](https://vortexcompanies.com/) [United Wetout](https://unitedfelts.com/united-wetout/) [United Felts](https://unitedfelts.com) --- ![UF Patent Protected Stamp Cobalt](https://insights.vortexcompanies.com/hs-fs/hubfs/UF%20Patent%20Protected%20Stamp%20Cobalt.png?width=2100&height=1771&name=UF%20Patent%20Protected%20Stamp%20Cobalt.png)   # EnviroCure®-Felt CIPP Liner # Now a Patented Breakthrough in Low-Emission CIPP Technology United Felts, a Vortex Company, has been awarded U.S. Patent No. 12,467,573 for its EnviroCure®-Felt liner — an industry-first cured-in-place pipe (CIPP) technology engineered to dramatically reduce styrene emissions while delivering proven structural performance. # EnviroCure®-Felt CIPP Liner # Now a Patented Breakthrough in Low-Emission CIPP Technology United Felts, a Vortex Company, has been awarded U.S. Patent No. 12,467,573 for its EnviroCure®-Felt liner — an industry-first cured-in-place pipe (CIPP) technology engineered to dramatically reduce styrene emissions while delivering proven structural performance. ![UF Patent Protected Stamp Cobalt](https://insights.vortexcompanies.com/hs-fs/hubfs/UF%20Patent%20Protected%20Stamp%20Cobalt.png?width=500&height=422&name=UF%20Patent%20Protected%20Stamp%20Cobalt.png)   KEY HIGHLIGHTS & BENEFITS  - Patent-protected styrene encapsulation technology featuring an integrated barrier film that locks styrene into the resin system. - Ultra-low emissions performance, with third-party jobsite testing showing styrene levels under 1 ppm — far below industry standards. - Matches the structural strength and durability of traditional CIPP liners with enhanced environmental performance. - Installs exactly like conventional CIPP, using the same equipment and methods — no workflow changes or retraining required. - Cost-effective alternative to fully styrene-free liners, offering sustainability without added cost or reduced durability. - Versatile across applications, including municipal sewer rehab, industrial pipelines, storm drainage systems, and culvert restoration. - Improves community, environmental, and worker safety through reduced odor and minimized emissions. - Available nationwide through United Felts’ wetout facilities, ensuring consistent supply and fast turnaround across the U.S. - Backed by [United Felts’](https://unitedfelts.com/) legacy of innovation, quality, and sustainability under its “UNITED TO DELIVER BIG” ethos. [Read Press Release](https://www.example.com) ## ![UF-Work Icon-3](https://insights.vortexcompanies.com/hs-fs/hubfs/UF-Work%20Icon-3.png?width=96&height=96&name=UF-Work%20Icon-3.png) ## How Does EnviroCure-Felt Work The patent pending EnviroCure-Felt coating system utilizes a unique combination of polymer materials to produce a flexible membrane for CIPP liners. Unlike traditional CIPP coatings, EnviroCure-Felt creates an impermeable styrene barrier over the entire liner length that does not allow styrene molecules to diffuse through the coating. During the tube transport to the job site, when the ends of the liners are sealed, styrene emissions are contained within the CIPP tubes and do not diffuse into the airspace of the truck. This minimizes the residual styrene migration into the reefer box, minimizing the closed system’s styrene concentration and enhances the installation crew safety. ## ![box](https://insights.vortexcompanies.com/hs-fs/hubfs/box.png?width=96&height=96&name=box.png) ANATOMY OF ENVIROCURE-FELT LINER Features multiple layers of material, which are overlapped to reduce styrene odor and emissions. This multi-layer construction consists of: 1. Inner Felt Layer - With Styrene Barrier Coating   2. Felt Liner Layers - Resin Saturated  3. Pre-Liner - Optional **ANATOMY OF ENVIROCURE-FELT LINER** Features multiple layers of material, which are overlapped to reduce styrene odor and emissions. This multi-layer construction consists of: 1. **Inner Felt Layer - With Styrene Barrier Coating  ** 2. **Felt Liner Layers - Resin Saturated ** 3. **Pre-Liner - Optional** ![UF-EnviroCure Illustration callouts](https://insights.vortexcompanies.com/hs-fs/hubfs/UF-EnviroCure%20Illustration%20callouts.png?width=701&name=UF-EnviroCure%20Illustration%20callouts.png "UF-EnviroCure Illustration callouts") ![IMG\_1217](https://insights.vortexcompanies.com/hs-fs/hubfs/IMG_1217.jpeg?width=2000&height=1500&name=IMG_1217.jpeg "IMG_1217") ![case-study-lead](https://insights.vortexcompanies.com/hubfs/case-study-lead.png) # Technical Data & Case Studies ### Technical Data Sheet |   | [EnviroCure®-Felt](https://insights.vortexcompanies.com/hubfs/UF%20EnviroCure%20Felt%20TDS-11.pdf?hsLang=en) | | --- | --- | ### Case Studies |   | [Citizens Cane](https://insights.vortexcompanies.com/hubfs/UF%20Citizens%20Cane%20Case%20Study-13.pdf?hsLang=en) | | --- | --- | |   | [EAG Laboratories](https://insights.vortexcompanies.com/hubfs/UF%20EAG%20Laboratories%20Case%20Study-6.pdf?hsLang=en) | |   | [Granite Inliner - Granite Construction](https://insights.vortexcompanies.com/hubfs/UF%20Granite%20Inliner%20-%20Granite%20Construction%20Case%20Study-6.pdf?hsLang=en) | |   | [Philly Water](https://insights.vortexcompanies.com/hubfs/UF%20Philly%20Water%20Case%20Study-6.pdf?hsLang=en) | ## GET IN TOUCH Request a Meeting with Our Technical Team ### Nunc interdum lacus sit Fusce egestas elit eget lorem. 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[![United Felts - A Vortex Company](https://insights.vortexcompanies.com/hs-fs/hubfs/UF_Logo_UF_Vertical_Vortex_FullColor-2.png?width=174&height=68&name=UF_Logo_UF_Vertical_Vortex_FullColor-2.png "United Felts - A Vortex Company")](https://unitedfelts.com/) QUICK LINKS ### [EnviroCure-Felt TDS](https://insights.vortexcompanies.com/hubfs/UF%20EnviroCure%20Felt%20TDS-11.pdf?hsLang=en) LOCATION ### 450 College Drive Martinsville, VA 24112 CONTACT ### Mon-Fri 8am-5pm EST 276-656-1904 [info@unitedfelts.com](mailto:%20info@unitedfelts.com) © 2025 United Felts, Inc., A Vortex Company. All rights reserved. [Privacy Policy](https://unitedfelts.com/privacy-policy/) | [Terms of Service](https://unitedfelts.com/terms-conditions/) \*United Felts is committed to protecting your privacy, and we’ll only use your personal information to administer your account and to provide the products and services you requested from us. You may unsubscribe from these communications at any time. For more details, please see the Vortex Companies [Privacy Policy](https://unitedfelts.com/privacy-policy/). [![UF\_Logo\_UF\_Vertical\_Vortex\_FullColor-2](https://insights.vortexcompanies.com/hs-fs/hubfs/UF_Logo_UF_Vertical_Vortex_FullColor-2.png?width=174&height=68&name=UF_Logo_UF_Vertical_Vortex_FullColor-2.png "UF_Logo_UF_Vertical_Vortex_FullColor-2")](https://insights.vortexcompanies.com/?hsLang=en) QUICK LINKS ### [United UV GRP TDS](https://insights.vortexcompanies.com/hubfs/UF%20United%20UV%20GRP%20TDS-8.pdf?hsLang=en) [EnviroCure UV® TDS](https://insights.vortexcompanies.com/hubfs/UF%20EnviroCure%20UV%20TDS-12.pdf?hsLang=en) [Comparison Chart](https://insights.vortexcompanies.com/hubfs/UF%20UV%20CIPP%20Liner%20Comparison-5.pdf?hsLang=en) [Equipment Portfolio](https://insights.vortexcompanies.com/hubfs/UF%20Equipment%20Portfolio-1.pdf?hsLang=en) LOCATION ### 450 College Drive Martinsville, VA 24112 CONTACT ### Mon-Fri 8am-5pm EST 276-656-1904 [info@ferratex.com](mailto:info@ferratex.com) © 2024 United Felts, Inc. All rights reserved. [Privacy Policy](https://vortexcompanies.com/wp-content/uploads/2023/08/Vortex-Companies-Terms-and-Conditions-of-Sale-8.8.23.pdf) | [Terms of Service](https://vortexcompanies.com/wp-content/uploads/2023/08/Vortex-Companies-Terms-and-Conditions-of-Sale-8.8.23.pdf) \*United Felts is committed to protecting your privacy, and we’ll only use your personal information to administer your account and to provide the products and services you requested from us. You may unsubscribe from these communications at any time. For more details, please see the Vortex Companies [Privacy Policy](https://vortexcompanies.com/wp-content/uploads/2023/08/Vortex-Companies-Terms-and-Conditions-of-Sale-8.8.23.pdf).