iPlus Composite Full Length Lining System

Insituform Technologies LLC


To assess requirements of the iPlus Composite™ liner system which is a fibre reinforced composite cured-in-place pipe (CIPP) full length liner system, for the renovation of circular and non-circular gravity sewers and drains with internal diameters between 600mm and 2400mm.

It does not apply to:

  • The installation or reconnection of laterals; and
  • The performance of the liner end seals.

Product Description

The iPlus Composite™ liner has a ‘sandwich’ construction comprising a ‘conventional’ CIPP material between two high-stiffness, fibre-reinforced layers which are reinforced with either glass i.e. glass/glass) or carbon and glass fibres (i.e. carbon/glass).

Full details can be found in the Assessment Schedule opposite.

Approval period

15th January 2020 - 15th January 2025

Click on certificate to enlarge

View Assessment Schedule.