Pipe lining, is the rehabilitation or reinforcement of pipes without excavation. It has become the method of choice for rehabilitation of deteriorated underground sewers and pipes due to its low installation cost, ease and speed of installation and minimisation of ancillary requirements such as traffic re-routing and security. Cured in Place Pipe (CIPP) Lining is a method of repairing a pipe using a flexible tube impregnated with a resin, which forms a new pipe within the original host pipe once the resin cures.
At the heart of the CIPP system is the resin matrix. Until it is cured by Ultra Violet (UV) Light, it remains in a liquid state within the host material – a glass reinforced tube. UV cured CIPP liners are factory manufactured and have a long shelf life provided they are not exposed to UV light.