Spray-in-place pipe lining (SIPP) is a trenchless rehabilitation method designed to structurally restore a pipe from within, eliminating the need to remove the pipe from its installation even if it is buried underground, behind walls or under foundations. Existing pipes suffering from corrosion or leaks are cleaned and coated with a specially formulated epoxy which extends the life of the pipe by 75 years while dramatically increasing its flow capacity.

Once the pipe interior has been cleaned and inspected by camera, the epoxy is applied to the pipe surface using a robotic spray head controlled by computer software. The computer monitors the speed at which the spray head moves through the pipe, which determines the thickness of the epoxy layer and ensures an even application throughout the pipe. The epoxy bonds and adheres to the pipe like car paint, sealing leaks and adding structural integrity to the original pipe itself. This technology can be utilized with various pipe materials, including metal, concrete, and plastic and tailored to various diameters and lengths.