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    SKU: CSS55-00223
    Fosroc Renderoc Primer - Elevate your repair projects with a high-performance cementitious slurry, ensuring exceptional bond strength and adherence to stringent standards.
    Availability: Please contact us for the stock availability.
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    Introducing Fosroc Renderoc Primer, a cutting-edge two-component cementitious slurry designed for seamless integration with Fosroc cementitious repair materials. Comprising specially selected cementitious powders and liquid polymer additives, this high-performance primer elevates the bond strengths of repair materials, conforming to BS EN 1504-3 classifications (R2, R3, R4) and complying with LU Standard 1-085 'Fire Safety Performance of Materials.'

    Key Features:

    • Easy to use, ensuring a hassle-free application process.
    • Achieves high bond strength, crucial for robust and long-lasting repairs.
    • Adhesion strength conforms to BS EN 1504-3, class R2, R3, R4 when used with compatible Fosroc repair materials.
    • Cost-effective solution for enhancing repair material performance.
    • Economical in use, maximizing the efficiency of the repair process.

    Standards Compliance:

    • Fosroc Renderoc Primer meets stringent industry standards, ensuring reliability and performance in adherence to BS EN 1504-3 classifications (R2, R3, R4) and LU Standard 1-085.

    Application Notes:

    • Ensure the concrete substrate is saturated surface dry before primer application.
    • Mix Renderoc Primer Part A and Part B in a 3:1 ratio (by volume) or 4:1 ratio (by weight) until a smooth, homogeneous slurry is achieved.
    • Scrub the Renderoc Primer slurry into the surface for optimal penetration.
    • Immediate application of the chosen Renderoc repair material on the primed surface.
    • In case of primer drying, apply an additional coat before continuing.
    • Clean all equipment with water promptly after use to maintain longevity.


    • Fosroc Renderoc Primer contributes to sustainability by optimizing repair processes, reducing material waste, and enhancing the longevity of repaired structures.
    Products specifications
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    Safety Data Sheet


    Below are the shipping rates:

    1. Orders =< 10 Kg: £6.50

    2. Orders =< 30 Kg: £9.99

    3. Pickup: £1.99

    Note: The shipping costs for products weighing over 30 Kg differ, please contact us for the shipping rates.

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