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Flexible Liner Systems

Flexible Liners That Go Where Rigid Solutions Can’t

MaxLiner’s Flexible Liner series is designed for versatility, precision, and performance in small-diameter CIPP applications. Whether you need to navigate 90° bends, transition across multiple diameters, or line straight piping with minimal stretch, our flexible liners are engineered to meet the challenge. With durable PU or PVC coatings, custom sizing options, and compatibility with MaxPox resins, these liners deliver smooth installations and long-term reliability no matter how complex the pipe run.

Max FlexLiner™

Non-woven, needle-punched polyester fiber felt with a PVC coating. Available with either a stitched skived seam or an overlocking chain stitched sewn process.

  • Open-End (Blindshot) with Calibration Tube & Closed-End
  • Straight piping applications with minimal stretch
  • May be used on sweeping bends up to 45°
  • Manufactured transitional liners and custom sizes are available
  • Compatible with MaxPox VE

Max Flex 4D™

Non-woven, needle punched PE felt liner with an elastic PU coating. Capable of transitioning up to four diameters (4D) while maintaining finished thickness and negotiating bends up to 90°.

  • Open-End (Blindshot) with Calibration Tube
  • Closed-End
  • For transitioning sizes / change in diameter
  • May be used on sweeping bends up to 90° with slight wrinkling
  • Custom sizes are available.

Max SuperFlex™

Non-woven, needle punched PE felt liner with an elastic PU coating. Capable of navigating multiple bends up to 90° and single-diameter transitions.

  • Open-End (Blindshot) with Calibration Tube
  • Closed-End
  • Pull-in-Place
  • Ideal for sweeping bends up to 90°
  • Manufactured transitions and custom sizes are available
  • Compatible with MaxPox VE

Max LinerTube™

Non-woven, needle-punched polyester fiber felt offered with PU coating designed for sweeping bends and very minimal stretch.

  • Open-End (Blindshot) with Calibration Tube & Closed-End
  • Straight piping applications with minimal stretch.
  • Sweeping bends up to 45°
  • Manufactured transitional liners and custom sizes are available
  • PVC Compatible with MaxPox VE

Max CalTubes®

We offer a variety of Max CalTubes which are crafted from ultra-flexible, light-duty or medium-duty PE fabric with a PVC coating, ensuring durability and reliability. Many tube features a high-frequency welded overlap seam for enhanced strength and performance. Ideal for various applications, CalTubes offer a dependable solution tailored to meet diverse needs.

  • HF – Clear
  • HF – Green
  • HE – Yellow
  • Stitched – Clear
  • Stitched – Orange

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