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United Glass

High Strength, High-Pressure Application Rated, Glass-Reinforced Liners for Pressure and Other Pipelining Applications

United Glass Liners are made for pressure sewer systems and other high-pressure applications through reinforced fiber glass with felt. These liners are designed to withstand higher internal pressures compared to standard felt CIPP, making them ideal for demanding municipal and industrial uses. Whether it’s for force mains, fire water lines, or non-potable water systems, United Glass Liners provide durability and performance custom-engineered to meet diverse project requirements. Emphasizing reliability and strength, our liners ensure a robust solution for your infrastructure challenges. Additionally, with higher flexural strength and high flexural modulus – there are reduced thickness requirements as compared to standard felt liners.

United Glass-PS

Pressure Sewer Rated Felt Liner

For custom pressure sewer and non-potable water applications, United Glass–PS can withstand higher internal pressures than standard felt CIPP and can be custom engineered for various pressure ranges to meet your projects goals. Constructed specifically for municipal sewer application such as force mains and can also be used for industrial purposes including fire water lines, and more.

  • Installation method: Inversion using water or air.
  • Diameter range: 6” – 48” OD
  • Wall thickness: 3 – 36 mm
  • Length: Any length made to order.
  • ISO 9001:2015 Certified

United Glass-RP

Multi-Layer Polyester Felt/Fiberglass Hybrid Liner

United Glass RP combines fiberglass reinforcement with our existing, best-in-class felt liner design and construction. This exclusive technology fully integrates and blends the unique properties of each, providing the strongest, most robust liner on the market today.

  • Installation method: Inversion using water or air.
  • Diameter range: 8” – 100” OD
  • Wall thickness: 5.5 – 40 mm
  • Length: Any length made to order.
  • ISO 9001:2015 Certified

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450 College Drive
Martinsville, VA 24112