Today area sealing of earth contacting building elements is one of the most demanding tasks in building and sanitation work. New methods and new sealing materials are developed for use in practice, which obviously also calls for sophisticated equipment solutions. Besides the well established single component devices for low viscosity epoxy or polyurethane resins, we also offer WIWA plural component injection sytems for the application of plural component sealing materials in high quanitities. Main applications are area sealing work for earth contacting building elements in tunnel and canal construction and the reinforcement of soil in many other areas.