ALCHIMICA’s cut and cover below ground waterproofing and protection system based on HYPERDESMO®-PB-2K meets all the necessary requirements of engineers and project managers for waterproofing specific demanding areas as tunnels. Our complete range of products includes highly flexible bituminous liquid membranes which are designed and fully tested for structural waterproofing applications, taking into consideration the critical point to deal with threats as unequal static forces, water ingress, aggressive chemicals, gas penetration, external mechanical pressures, and temperature variations but also treat and seal the concrete dilatation joints.