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    Bonding Agents and Plugging Compounds

    Good bonding agents for concrete help new concrete, mortar or plaster grip an old surface, so a repair does not come away from it. This range has SBR latex and acrylic types that work as a bond coat or as an admixture in the mortar, and a two-component epoxy concrete bonding agent for structural work on damp or dry surfaces. It also holds each leak plugging compound we make, fast-setting powders that stop running water at a leak point. Use the chooser below to find the right one for your job.

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    Bonding agents compared

    ProductTypeUse it forCoverage or mix
    ROOFBOND SBR 401Single-component SBR latex bonding agentOld-to-new concrete bond coat, repair mortar, floor screedsBond coat 40–65 sq.ft per litre per coat
    ROOFBOND MPB 301Acrylic emulsion bonding agent and admixtureOld to new concrete bonding, plaster repairs, tile joint fillingBond coat 1:1 with cement, admixture 1–5 Ltrs per 50 kg cement
    ROOFBOND PB 210Acrylic polymer bonding agent and admixtureConcrete to concrete bonding, plaster repairs, industrial floorsBond coat 1:1 with cement, admixture 1–5 Ltrs per 50 kg cement
    ROOFBOND EPTwo-component solvent-free epoxy bonding agentNew-to-old concrete bonding on damp or dry surfaces2–2.5 sq.m per kg, brush applied

    Leak plugging compounds compared

    ProductTypeUse it forSetting time
    RAPIDSTRONG PLUG 31Rapid plugging compound, hydraulic cement blendActive water leaks, pipe penetrations, manhole leaks30 seconds
    WONDERSEAL PLUG XLHydraulic setting plugging compound that expands on settingActive water leaks, basement leaks, water tank repairsHold under pressure for 30–60 seconds

    Showing 6 in Bonding Agents & Plugging Compounds

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    Bonding Agents & Plugging Compounds

    SBR/PB/Epoxy bonding agents and rapid plugging compounds for structural repairs

    6 Products
    1
    ROOFBOND SBR 401

    ROOFBOND SBR is a high-performance Styrene Butadiene Rubber (SBR) latex polymer bonding agent for high-quality cementitious repairs and structural restoration. A multifunctional, single-component liquid for both internal and external surfaces, it also provides high-performance waterproofing — a universal repair product for concrete and masonry works.

    2
    ROOFBOND EP

    ROOFBOND EP is a two-component, solvent-free epoxy resin bonding agent for producing excellent bond strength between old and new concrete and cementitious surfaces. Brush-applied in a thin film, it cures to a high-strength epoxy bond layer with an open overlay window of 2–3 hours at 30°C and 5–6 hours at 20°C. It delivers 52 N/mm² compressive, 36 N/mm² flexural and 25 N/mm² tensile strength. Suitable for both damp and dry surfaces. Approved and extensively used across CPWD, PWDs, APGENCO and government infrastructure projects.

    3
    RAPIDSTRONG PLUG 31

    Stops water flow, sets in 30 seconds. For underwater plugging to stop leakage and seepage.

    4
    ROOFBOND MPB 301

    Acrylic Emulsion Modified concrete Bonding Agent and Admixture. High quality modifier and multi-functional product providing highly durable and impermeable cementitious concrete and mortar. Excellent weather resistance for structural repairs and restoration. Can be used as bond coat (1:1 with cement) or admixture.

    5
    ROOFBOND PB 210

    Acrylic Polymer Bonding Agent. High performance polymer bonding agent reducing permeability in cementitious mortars and concretes. Compatible with all cement types. Eco-friendly and non-toxic. Used as bond coat or admixture to increase durability and tensile and flexural properties.

    6
    WONDERSEAL PLUG XL

    High Performance Hydraulic setting instant plugging and expandable material with water resistance. Advanced hydraulic cement based plugging compound for instantly arresting active water leaks. Expands on setting to provide excellent watertight seal in wet conditions.

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