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    ​​Chemical, Mineral & Cementitious Grouting

    Pre-Injection and Post-Injection Technologies

    Unexpected water ingress and poor ground conditions during mining and tunneling operations can cause significant problems for underground contractors. Pre-injection and post-injection technologies from Master Builsers Solutions offer high-performing chemical and non-chemical products suitable for:

    • Water and crack sealing, void-filling
    • Strata stabilization, ground consolidation, structure repair

    Injection Videos:

    Chemical, Mineral & Cementitious Grouting Products

    Ground Consolidation

    MasterRoc MP 300

    Re-swells upon exposure to moisture after dry periods | Cured material is a highly flexible gel | Excellent adhesive properties, even on damp or wet surfaces

    MasterRoc MP 325

    Low viscosity, single-component hydrophilic chemical grout | For sand and silt strata consolidation | Environmentally safe with no solvents or toxic components

    MasterRoc MP 309

    Acrylic system with hard cured gel | Compact gel with high compressive strength and superior flexibility | Ideal for silty and sandy ground consolidation

    MasterRoc MP 650

    Microfine cement for water sealing and ground stabilization | Easy penetration into tight joints, fissures, pore spaces

    MasterRoc MP 900

    Ultrafine cement with superior penetration characteristics | Suitable for pre-injection and post-injection
    Injection Accessories

    MasterRoc MP 231 CLN

    Organic-based solvent that is nonflammable and is free of water | Suitable for cleaning injection pumps, lines, and other associated equipment | Flash point 414 °F (212 °C)​

    MasterRoc EQ 250 OR

    Oakum rope used with BASF chemical grouts | Seal cracks, joints, annular spaces | Excellent absorption

    MasterRoc EQ 512 PK and MasterRoc EQ 558 PK

    Mechanical packers for high-pressure chemical grout injection | Expandable rubber sleeves | Snug fit and solid connection

    MasterRoc MP 230 CLN

    Non-hazardous solvent for cleaning injection equipment | Rust proofing | High flash point (> 390°F/200°C)
    Void Filling & Cavity Fill

    MasterRoc MP 358SC

    Highly-reactive hydrophobic polyurethane | High flexibility and high structural strength | Not sensitive to water

    MasterRoc MP 355

    Polyurethane reacts with or without water | Forms rigid foam or rubber-like material | For stopping high volume water

    MasterRoc MP 367 Foam

    Highly reactive polyurea silicate foam for filling strata cavities | Closed-cell foam for water tightness | Excellent adhesion to wet substrates
    Water & Crack Sealing

    MasterRoc MP 304

    Acrylic system with highly flexible cured gel | Low viscosity, fast-reacting, adjustable gel time | Accommodates structural and ground movements

    MasterRoc MP 368

    Fast reacting polyurea silicate with excellent adhesion to concrete | Fast bond and compressive strength development | Does not absorb water

    MasterRoc MP 307CE

    Acrylic system with rubber-like cured gel | Non-shrinking, not sensitive to water, withholds high pressure

    MasterRoc MP 368 TIX

    Fast-reacting | Solvent-free | Specifically designed for rapid ground consolidation in strata with open cracks at the surface

    MasterRoc MP 355 1K

    Single-component hydrophobic polyurethane | For stopping medium water ingress | Adjustable reaction time

    MasterRoc MP 355 1K DW

    Sigle-component hydrophobic polyurethane with flexible foam | Use in structures for drinking water
    Underground Chemical Grouting

    Direct contact

    Master Builders Solutions Technical Support

    Admixture Systems


    Related Literature

    Chemical Grout Application Guide

    pdf (895.67 Kb)

    Chemical Grout Performance Guide

    pdf (1.76 Mb)

    UGC Injection Brochure

    pdf (4.87 Mb)

    UGC Water Management Brochure

    pdf (5.42 Mb)