• Betofix R4 EM [basic]

    Article No. 108625

    Betofix R4 EM [basic]

    PCC I (RM) Concrete replacement mortar for repairing concrete structures/screed mortar

    1086 | grey
    Size / Quantity

    Product specifications

    Resistance to ground 7 x 106
    Flexural tensile strength 28 d: ≥ 8.0 N/mm²
    Compressive strength 1 day: ≥ 15 N/mm²
    7 days: ≥ 35 N/mm²
    28 days: ≥ 50 N/mm²
    Maximum grain size 5 mm
    Water requirement Approx. 7.5% corresponds to 1.9 l/25 kg

    The stated values represent typical product characteristics and are not to be construed as binding product specifications.

    Field of application

    • For use on floors indoors and outdoors
    • Concrete replacement for structurally relevant repairs
    • Concrete replacement according to
      - DIN EN 1504-3
    • Industrial screeds
    • Bonded screed, floating screed and screed on separating layer
    • Heated screeds


    • High mechanical resistance
    • Freeze/thaw-resistant
    • Very low shrinkage
    • Can be applied by machine
    • Preparation
      • Substrate requirements

        Concrete surface:
        Stable, clean, dust-free
        Observe the applicable technical regulations for the following parameters:
        - Adhesive pull strength of the substrate
        - Minimum roughness/roughness depth

        Pre-wet the substrate so that it is slightly moist.

        Degree of purity SA 2 ½ if applying corrosion protection, otherwise SA 2


    • Application
      • Application temperature: min. 5 °C max. 30 °C
      • Smoothing trowel
      • Processing time
        (+20 °C): approx. 90 minutes


        Layer thickness

        Single layer thickness < 80 mm

        Layer thickness in breakouts up to max. 100 mm

        In the case of bonded screeds, apply the product while the bonding layer is still wet.


        Subsequent processing

        Protect fresh mortar surfaces from wind, direct sunlight, rain and/or frost for at least 3 days so that they do not dry too quickly.


        Machine working

        Please contact Remmers Technical Service (phone +49 5432 83900) before applying with machine processing.


    • Working tools / cleaning
      • Smoothing trowel
      • Mixing tool, trowel, aluminium rule, finishing trowel, power trowel

      • Clean tools with water while the material is still fresh.

    • Storage / shelf life
      • Protect form moisture
      • Shelf-life 12 months
      • If stored in an unopened container and in a dry place, the product will keep for approx. 12 months.

    • Usage
      • 2.0 kg / mm thick layer / m²
      • Approx. 2.0 kg/m²/mm layer thickness, or 2.0 kg/dm³

    • Disposal instructions
      • Larger quantities of leftover product should be disposed of in the original containers in accordance with the applicable regulations. Completely empty, clean containers should be recycled. Do not dispose of together with household waste. Do not allow to enter the sewage system. Do not empty into drains.

    • Safety / regulations
      • For further information on the safety aspects of transporting, storing and handling the product and on disposal and environmental matters, please see the current Safety Data Sheet.

    Possible system products