Injection Systems for Ground Consolidation


Avoid the unexpected with Master Roc injection technologies

MasterRoc offers a complete range of injection products and technical support in ground consolidation.

Microcements (MasterRoc MP 650) and mineral grouts (MasterRoc MP 320 and MasterRoc MP 325) known as colloidal silica, represent a significant technological advantage in injection. These systems allow a cost effective approach and improve working safety with minimal environmental consequences. Due to their fineness, they provide extremely effective penetration into fine cracks in rock and finely-grained soils to give efficient water tightness, stability and durability.

Foaming, water sensitive polyurethanes (MasterRoc MP 350 series) are ideally suited to combat water ingress quickly and effectively. For particularly difficult cases the solution is a combination of drainage and the injection of a rapid reacting foaming resin.

Quick reacting and non-water sensitive polyurea silicate systems (MasterRoc 360 series) quickly stabilize poor ground. The expanding foaming system is excellent for void filling.

Our range of acrylic resins (MasterRoc MP 303 and MP 307) is particularly suitable for rehabilitation injections for precast concrete segment linings and brick and masonry-lined tunnels.

Injection Products

MasterRoc MP 307 CE

MasterRoc MP 307CE is a highly reactive two-component acrylic resin with a low viscosity for good penetration. The product cures quickly, forming a rubber-like resin with the ability to withstand certain ground and crack movement.


MasterRoc MP 320

MasterRoc MP 320 is a one-component injection system for the following applications, pre-injection grouting for underground application, post injection, ground improvement, water ingress reduction, slope stabilization.


MasterRoc MP 350

MasterRoc MP 350 is a single component hydrophilic polyurethane based water sealing injection resin. It is specifically designed for the permanent crack sealing of concrete and rock in underground structures and the sealing of minor water ingress.


MasterRoc MP 355

MasterRoc MP 355 is a two-component, solvent-free polyurethane injection resin specifically designed for stopping rapid water flow and ground stabilization.


MasterRoc MP 355 1K

MasterRoc MP 355 1K is a one component polyurethane injection foam which only reacts when in contact with humidity or water. It prevents small to md-volume water ingress in underground structures and is also suitable for the filling of water bearing voids


MasterRoc MP 355 Thix

MasterRoc MP 355 Thix is a two component, solvent-free polyurethane injection resin specifically designed to stop high volume water ingress and rapid water under difficult conditions (flowing water) in underground structures. It is suitable for cold water


MasterRoc MP 364 Flex

MasterRoc MP 364 Flex is a two-component, solvent-free polyurea-silicate injection resin specifically designed for rapid stabilization of strata and sealing against water.


MasterRoc MP 650

MasterRoc MP 650 microfine portland cement is designed for use in rock and soil injection. MasterRoc MP 650 has a small particle size making it particularly well suited for penetration into tight joints, fissures and pore spaces.


MasterRoc MP 800

MasterRoc MP 800 is well-graded cement milled from pure Portland cement clinker. It is specifically designed for pre-injection in all underground structures, post injection, water ingress reduction, ground stabilization and contact injection.


Richard Foord

Underground Construction
Phone: +44 7966123397