HOW IT WORKS?

How does CIPP rehabilitation work?

CIPP pipe lining follows a controlled installation process that includes inspection, cleaning, liner preparation, installation, curing and final quality control. The exact method depends on the pipe dimensions, configuration, condition and access points.

  1. Evaluation: The process begins with a detailed camera inspection of the existing pipe. This identifies cracks, leaking joints, corrosion, deposits and other damage while helping determine whether cured in place pipe lining is suitable.
  2. Cleaning: The pipe is thoroughly cleaned and descaled to remove grease, corrosion, deposits and loose material. Proper cleaning helps restore the available internal diameter and prepares the pipe surface for installation.
  3. Preparing the liner: A flexible liner is measured according to the diameter and length of the section being repaired. It is then carefully saturated with the required amount of epoxy resin.
  4. Installing the liner: The prepared liner is inserted into the existing pipe using a suitable installation method, such as pull-in-place or inversion. The liner is expanded using air pressure so that it fits closely against the internal walls of the original pipe. This creates the shape of the new cured in place pipe before the epoxy hardens.
  5. Curing: Once correctly positioned, the liner is allowed to cure. Depending on the selected system and project requirements, curing may take place at ambient temperature or be accelerated using heat. As the epoxy hardens, it creates a seamless, durable and corrosion-resistant new pipe inside the original one.
  6. Final inspection: After curing, a final camera inspection is carried out to check the liner’s position, internal surface and openings. The inspection confirms that the CIPP pipe lining installation is ready to return to service.

THE PROCESS OF PIPE RELINING

FROM PLANNING TO COMPLETION WITH CONSISTENCY

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FAQ

CIPP stands for cured in place pipe. The term describes a liner that is installed and cured inside an existing pipe to form a new internal pipe without removing the original system.

Cured in place pipe lining is a trenchless repair method in which a resin-saturated liner is installed inside an existing pipe and cured until it forms a strong, continuous new internal pipe.

The existing pipe is inspected and cleaned before an epoxy-saturated liner is inserted. The liner is expanded against the internal pipe walls and cured to create a smooth and corrosion-resistant new pipe within the original one.

CIPP pipe lining may be suitable for cracks, leaking joints, corrosion, small holes and deteriorated internal surfaces. The original pipe must retain enough structural stability to support the new lining.

In many cases, CIPP pipe lining can be completed without excavating the entire pipe route. The liner is installed through existing or locally created access points, although limited access work may still be required.

A cured in place pipe is designed to provide a durable, long-term repair. Its service life depends on the condition of the original pipe, material selection, preparation, installation quality, curing conditions and ongoing use.

Camera inspections are normally performed before installation and after curing. The final inspection checks the liner’s position, internal surface, openings and overall installation quality.