Koster Injection G4 - London Underground

Koster were asked to design a waterproofing system which wold be able to deal with the demands and stresses within the one of the London Underground tunnels. The most suitable system involved injecting the Koster Injection Gel G4 into the brick tunnel lining thus leaving an elastic resin within the pores and voids in the substrate. This acrylic gel would not allow water to pass, can flex and move with the anticipated vibrations in the tunnel and will not degrade over time. It was important for the solution to e environmentally stable so limit the impact on the environment.