How the Triton Spray In Place Lining Process Works


Epoxy and polyurethane resin SIP (Spray In Place) pipelining of pressure pipes offers significant advantages over traditional dig and replace, slip lining, pipe bursting and cement mortar lining.

Our proven in situ trenchless SIP rehabilitation methods restore corroded and blocked water pipes in a fraction of the time and for significantly less cost and disruption than it takes to replace water main pipe.

The result

The SIP lining process rehabilitates pipes by centrifugally spraying a 100% solids, solvent-free, lining onto the inner surface of the host pipe. The cleaning and lining process removes all corrosion and tuberculation. It restores carrying capacity, flow requirements and provides structural enhancement to the pipe.

This tough trenchless process can rehabilitate 600 feet of tuberculated or restricted pipes in a single pass, and protects against future corrosion buildup, deterioration and seals small holes and leaks without the cost and disruption of excavation and replacement.

Research by AWWA Research Foundation concluded that deteriorated old pipes lined utilizing the SIP process and technology can expect an additional minimum 50-year design life.

Pipeline Rehabilitation

Key Benefits of Pressurized Pipe Rehabilitation Utilizing the Triton Process:

  • Potable water approved (certified to meet ANSI/NSF Standard 61)
  • Improves hydraulic efficiency
  • Low profile of polymeric spray lining ensures minimal cross-sectional reduction (unlike CIPP and slip lining)
  • Long length installations, up to 600’ in a single pass

Photo gallery



Most older pipes are structurally sound but are suffering from corrosion induced water quality and flow problems.

When considering spray applied linings for the rehabilitation of your assets there are a number of factors that need to be considered in order to determine if this method is the right trenchless rehabilitation method for your project.

Pipe material, condition, age, depth of bury, load bearing, break history and size as well as soil type around the pipe are important factors.

Also, to be considered are the proximity of other utilities, potential environmental impacts, flow test data and if the asset will require a fully structural, structural enhancement or non-structural rehabilitation.

Our project consultants also take into account maintenance history, including but not limited to: multi-year breaks, leakage, repairs, water quality reports and customer complaints.

Technical Info


Polymeric pipe SIP lining materials are supplied as two-part, 100% solids, solvent free systems consisting of resin or base material and hardener or activator. When thoroughly mixed they provide a rapid cure, high-build, potable water certified material. The cured pipe lining material is inert and achieves pipe corrosion protection by providing an impermeable barrier, effectively separating the water from the pipe material, structural enhancement, thereby preventing further corrosion.

The finished polymeric lining is smooth and hard with excellent water resistance and hydraulic profile. The applied lining will not impair the quality of potable water, nor will it affect the pH. The thin, smooth lining enhances pressurized pipe flow capacity of previously corroded water mains enabling operating pressure reduction to be readily achieved. The polymeric linings are applied with the use of in-situ lining rigs equipped with heated materials storage tanks, umbilical hoses, application spray heads and are fully automated and controlled by computers with pre set stringent parameters and tolerances.

In some parts of the world, there has been a complete transition from cement mortar pipe lining to the exclusive use of polymeric pipe lining materials. The main reason for this change was the result of the development of water quality problems related to the lime composite of the cement mortar and the pH of soft water.

  • Application Surfaces: cast iron, steel, ductile iron, asbestos cement, concrete cylinder pipe
  • Diameter range: 3” / 75 mm and larger
  • Lining thickness: 1 mm / 40 mils – 3.2mm / 128 mils in a single pass / application
  • Lining lengths: up to 600 feet / 182 meters
  • Bends: up to a single long radius 45