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

    ​​​​​​MasterFlow 9800 – Bulk supplied high strength grout for offshore wind turbine foundations

    Where and how does MasterFlow 9800 work?

    Wind turbines are special – their safe and durable installation largely depends on the correct design and interaction of all components – and require a high-performance MasterFlow Exagrout to guarantee long term and maintenance-free operation of the wind farm. MasterFlow 9800​ is a new generation of high strength, fatigue resistant grout for grouted connections used in offshore installations like jacket foundations or monopiles with bolted connections.

    What makes MasterFlow 9800 a unique solution?

    MasterFlow 9800 is bulk supplied offshore grout which is installed using a continuous mixing & pumping equipment, with the aim to increase productivity and safety during grouting works. The material exhibits long term durability and guarantees a fast, secure, and cost reduced installation of the offshore wind farm. The high early and final strength and excellent fatigue resistance makes this material uniquely suitable for structures that are exposed to very high dynamic loads, e.g. high wave actions and wind loads in offshore conditions.

    • The high early strength development of MasterFlow 9800 and the possibility to install the material in temperatures as low as 2°C, allow the material to be installed in the shortest weather windows possible. Unmatched grout output rates of = 20 m³/h allow the fastest application possible.
    • Short overall installation times and earlier operation of the wind farm guarantee faster energy production, earlier return on investment and safeguard project completion on time.

    Benefits of MasterFlow 9800

    MasterFlow 9800 meets customer demands of all value players in the offshore market and offers a wide variety of benefits such as:

     Excellent durability

    • High fatigue resistance, absorbing dynamic loads
    • Volume stable
    • High flexural strength
    • Lower modulus of elasticity, less brittle grout
    • Very low porosity and water absorption

    Secure installation

    • High early strength development reducing the risk of early age cycling
    • Excellent long term load transfer
    • High ultimate strengths

    Fast and cost effective installation

    • Rapid strength build-up, even at cold temperatures
    • Short overall installation times and earlier operation of the wind farm
    • Faster energy production and earlier return on investment​​

    Find out how MasterFlow 9800 is installed


    Other Grouting Solutions ​for Wind Turbines

    MasterFlow 9200 - Ultra high strength, cement based grout, with applied nanotechnology for grouting onshore VESTAS wind turbine installations​

    ​MasterFlow 9300 – Ultra-high strength, cement based grout with metallic aggregate and applied nanotechnology for grouting onshore wind turbine installations​​​​

    MasterFlow 9400 - Ultra-high strength, cement based grout for onshore wind turbine installations​

    MasterFlow 9500 - Ultra-high strength, high modulus, cement based​ grout ​with applied nanotechnology for grouting offshore wind turbine installations

    MasterFlow 9600 - Bulk supplied, offshore grout with applied nanotechnology​ for grouting foundations of wind turbine installations​​


    Brochure: MasterFlow 9800 - Bulk Supplied Offshore Grout: Revolutionizing Productivity and Safety

    pdf (602.62 Kb)


    Brochure - Comprehensive Solutions for the Wind Industry

    pdf (1.02 Mb)

    Brochure - Construction Solutions for Power and Industry

    pdf (1.50 Mb)

    Brochure - Introduction to Master Builders Solutions

    pdf (2.60 Mb)

    Discover our solutions

    Explore the Master Builders Solutions portfolio

    MasterFlow 9800 brochure

    MasterFlow 9800 brochure

    Learn more about our bulk supplied offshore grout that revolutionized productivity and safety

    Comprehensive Solutions for the Wind Industry

    Comprehensive Solutions for the Wind Industry

    Click here to learn more about the reliable, cost efficient, and fatigue resistant solutions offered for the wind industry