Affordable, reliable and no-dig solutions for sewer pipe reconstruction

For more than 40 years, Cured-In-Place Pipe (CIPP) has become the most widely accepted, cost-effective method of repair to damaged and corroded water and sewer pipelines.

I Green Cured-In-Place Pipe (CIPP) is a trenchless (or no-dig) pipeline rehabilitation process involving a textile liner tube and liquid resin combination. The process begins by saturating the liner with the liquid resin (referred to as the wet-out process). I Green’s wet-out process involves vacuum impregnation of the linear inside of a bladder membrane, which allows for a safe and clean resin saturation process.

Once this is accomplished, the liner is inserted into the host pipe and cures to a hard state, forming a new, seamless pipe within a pipe. I Green’s installation method utilizes air pressure to invert the liner through the pipe, pressing the liner up against the pipe wall to take on the formation of the pipe. Liners can be custom made to accommodate any pipe configuration, including multiple bends and transitions in diameter. CIPP can be used in all types of piping and is an excellent, cost-effective solution compared to traditional excavation methods.

I Green CIPP Installation Process

Step 1

Preparation of liner through wet-out process to impregnate the felt with thermosetting resin.

Step 2

Inversion of liner into the pipeline.

Step 3

Curing of liner by hot water.

Step 4

Opening of lateral connections by remote cutter & re-commissioning of the pipeline.

I Green CIPP resolve your top concern

Infiltration Reduction
  • Stops water infiltration and exfiltration, root intrusion and soil loss
Increased Flow Capacity
  • Restores full strength to original pipeline. Smooth pipe finish improves flow characteristics.
Installation Flexibility
  • Drastically reduces the public inconvenience and disturbance to the environment caused by traditional repairs.
  • Low cost installation
Environmentally Safe
  • No removal of trees or bushes
  • No damage to the existing ground
  • No disruption of traffic

Performance & Testing


Meets or exceeds installation standards per ASTM F-1216


Flexural modulus of elasticity exceeds 600,000 psi per ASTM D-790


Flexural strength exceeds 6,600 psi per ASTM D-790


Tensile strength exceeds 5,200 psi per ASTM D-638

The CIPP Technical Envelope

Diameter Range: 225mm – 900mm
pH Range: 0.5 – 10.5
Effluent Temperature: up to 140 ˚C
Pipe Condition – Fully Deteriorated: Yes
Pipe Condition – Partially Deteriorated: Yes
Bends: Yes
Offset Joints: Yes
Host Pipe Shape: All Shapes
Host Pipe Material: All Materials
Design Standards: ASTM F1216
Test Specifications: ASTM D790
Design Life: 50 Years