Please login with your username and password.


Can’t remember your accounts password?

Can't access your account?

Select your language

This page is available in the following languages:

    Please select your location

    ​MasterRoc SLF 41 – Soil conditioning foam for Tunnel Boring Machines (TBM)

    ​How does​​​ MasterRoc SLF 41 work?

    MasterRoc SLF 41 is a polymer reinforced foaming agent specially designed for soil conditioning in shielded tunnel boring machines. It is suited to soft ground tunneling and silt to sand soils which may contain a high amount of water, and can be used with the standard TBM dosing and foaming equipment.

    What are the u​​nique features of MasterRoc SLF 41?

    • Improved soil behavior
    • Easier ‘mucking’
    • Reduced soil permeability

    How does MasterRoc S​​LF 41 benefit customers?

    • Creation of plastic deformation properties in the soil, which provides an even and controlled support pressure and increased face stability
    • Lower inner friction and lower abrasiveness of the soil at the cutterhead
    • Reduced stickiness of certain soils, which would lead otherwise to blockage problems


    Brochure - Introduction to Master Builders Solutions

    pdf (2.60 Mb)

    Brochure: Injection - Solutions for Underground Construction

    pdf (4.23 Mb)

    Brochures: TBM - Solutions for Underground Construction: MasterRoc SLF 41

    pdf (7.75 Mb)

    Discover our solutions

    Explore the Master Builders Solutions portfolio