• Betofix RM

    Article No. 109225

    Betofix RM

    Fast repair mortar

    Colour: grey | 1092
    Packaging unit

    Product specifications

    On delivery

    Strength class R2 (DIN EN 1504-3)
    Reaction to fire Class E
    Compressive strength 3 hours: approx. 3 N/mm²
    24 hours: approx. 6 N/mm²
    28 days: > 10 N/mm²
    Bulk density of fresh mortar Approx. 1.7 kg/dm³
    Maximum grain size 0.5 mm
    Adhesion capacity (DIN EN 1542) (28 days) > 0.8 N/mm²
    Capillary water uptake ≤ 0.5 kg/(m²h0.5)
    Consistency of the mixture For filling
    Layer thickness Single layer 1.5 - 10 mm
    Two layers < 20 mm, apply wet-on-wet
    In broken-out areas < 100 mm
    Water requirement Approx. 4.7 - 5.0 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 walls/ceilings indoors and outdoors
    • Repair of coarse concrete surfaces in areas that are not exposed to static or dynamic loads
    • Repair of holes, cracks, pores, missing and broken out areas
    • Levelling of concrete surfaces
    • Mineral protection against the corrosion of reinforcement steel (in combination with S-Protect M, art. 0919)


    • Certified in accordance with DIN EN 1504-3
    • Can be applied by spatula and felted
    • Well suited to overhead working
    • Low-stress and crack-free setting
    • Compressive strength after 28 days > 10 N/mm²
    • Preparation
      • Substrate requirements

        Clean, dust-free and capable of supporting a load.

      • Preparations

        Expose all steel parts, derust to a degree of purity of SA 2½

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

    • Application
      • Mortar cover / Filling knife / Trowel application
      • Drying time: can be worked over after 20 minutes
      • Application temperature: min. 5 °C max. 25 °C
      • Application requirements

        Temperature of the material, air and substrate: from min. +5 °C to max. +30 °C

      • Protection against corrosion in combination with S-Protect M (Rust Inhibitor M)

        Apply to layers of grout with a thickness of 1 mm each making sure the entire surface is covered.

        Waiting time between layers: approx. 30 minutes.

        Follow-up work must be carried out wet ond wet.


        Concrete replacement

        If necessary, apply a scratch coat with the product itself.

        Dilute the product slightly before applying the product to hard-to-reach places in the form of contact sludge.

        Apply the desired layer thickness and smoothen the surface.

        After 15 - 30 minutes felt, rub, smoothen or texture the surface.

    • Application instructions
      • Once it has hardened, mortar must not be made workable again by adding either water or more wet mortar.

        Do not mix more mortar than can be used within approx. 20 minutes.

        Can be overcoated after 2-3 hours.

        Protect fresh mortar surfaces for at least 2 days from drying out too quickly, and from frost and rain.

    • Working tools / cleaning
      • Mortar cover / Filling knife / Trowel application
      • Mixer, brush, filling knife, trowel, smoothing trowel, sponge float, plasterer’s float

      • 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
      • 1.2 kg / mm thick layer / m²
      • Approx. 1.2 kg/m²/mm layer thickness

    • General information
      • The mixing water must be of drinking water quality.

        May contain traces of pyrite (iron sulphide).

        Low chromate content in accordance with Directive 2003/53/EC.

        The characteristic data of the product were calculated under laboratory conditions at 20°C and 65% relative humidity.

        The product is not suited for floor surfaces outdoors.

    • 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.