
National Liner is a premium cured-in-place pipe (CIPP) trenchless rehabilitation system. The system consists of a polyester felt tube,
which is saturated with a thermosetting resin.
All materials used by National Liner meet applicable ASTM standards and requirements for trenchless sewer pipeline rehabilitation.
These include ASTM D-790 "Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating
Materials and ASTM D-638 "Test Methods for Live Load Coefficient".
For more complete information about the design and typical physical properties of National Liner please select from the following options:
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