• Betofix R3 SR

    Article No. 110925

    Betofix XWW4

    Coating mortar conforming to DIN 19573 in areas with biogenic sulphuric acid corrosion

    1109 | Betofix XWW4
    Size / Quantity

    Product specifications

    On delivery

    Flexural tensile strength (28 days) ≥ 4.0 N/mm²
    Compressive strength 1 d = > 10 N/mm²
    7 d = > 25 N/mm²
    28 d = > 30 N/mm²
    Dynamic E-modulus ≥ 25000 N/mm²
    Maximum grain size 2 mm
    Bond strength (28 d) ≥ 1.5 N/mm²
    Capillary water uptake ≤ 0.5 kg/(m²h0.5)
    Water requirement Approx. 10.7%, equivalent to 2.7 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/walls/ceilings indoors and outdoors
    • Repair and coating mortar for wastewater facilities
    • In sewage systems exposed to high level of chemical attack, such as settling tanks, sludge thickeners and intakes
    • For building elements subjected to chemical loads in agricultural and biogas facilities
    • Concrete replacement according to
      - DIN EN 1504-3


    • Sulphate-resistant
    • High mechanical resistance
    • Freeze/thaw-resistant
    • High resistance to water penetration
    • Very low shrinkage
    • Early strength
    • 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. 25 °C
      • Bonding layer

        Create and apply bonding layer of Betofix XWW4


        Working time
        (+20 °C): approx. 20 minutes


        Layer thickness

        Single layer 6 - 15 mm
        Two layers < 30 mm, apply wet on 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.

    • Working tools / cleaning
      • Mixing tool, trowel, smoothing 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 approx. 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.