4" (75') X 6" (75'), HELIAM TRANSITIONAL SCRIM

HELIAM® Transitional Scrim Liner — Built-In 4"–6" Transitions for Continuous Installation

The HELIAM® Transitional Scrim Liner delivers the same proven performance as HammerHead’s flagship HELIAM scrim-reinforced liner, now with an integrated 3-foot transition from 4" to 6" to handle diameter changes within a single installation. Engineered to minimize longitudinal stretch, it ensures accurate inversion lengths and reliable landing points while seamlessly navigating transitions in host pipe size. Designed for use in 4"–6" applications, this liner performs best in straight shot installations or those with a single bend up to 45°, making it ideal for common lateral-to-main transitions. Compatible with all CIPP curing methods, it eliminates the need for multiple liners or field modifications, improving efficiency and overall installation quality. Available in a range of configurations with fixed 3-foot transition sections incorporated into various total liner lengths, it provides a streamlined solution for diameter-change applications.

Key Features

• Integrated 4"–6" Transition — Factory-sewn 3-foot transition eliminates the need for multiple liners or on-site modifications
• HELIAM® Scrim Reinforced Construction — Minimizes longitudinal stretch for accurate inversion lengths and repeatable installs
• Designed for 4"–6" Applications — Ideal for straight shot installs or a single bend up to 45°
• All-Cure Compatibility — Suitable for hot water, steam, Bluelight® LED, and ambient curing methods
• Improved Installation Efficiency — Reduces setup time and simplifies installs in pipes with size transitions
• Consistent, Reliable Performance — Engineered construction supports uniform inversion and predictable curing results
• Multiple Length Options — Available with fixed 3-foot transitions in various overall liner lengths to match job requirements