Article No. 055425

    Betofix HQ2

    Swellable packing mortar with high early strength

    Colour: grey | 0554
    Packaging unit

    Product specifications

    On delivery

    Flexural tensile strength (28 days) ≥ 7.0 N/mm²
    Compressive strength 1 day: ≥ 10 N/mm²
    7 days: ≥ 35 N/mm²
    28 days: ≥ 40 N/mm²
    Dynamic E-modulus ≥ 25000 N/mm²
    Bulk density of fresh mortar Approx. 2.2 kg/dm³
    Maximum grain size 2 mm
    Capillary water uptake ≤ 0.5 kg/(m²•h0.5)
    Degree of swelling (24 h) Approx. 1.5% by volume
    Water requirement Approx. 12%, equivalent to 3.0 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 floors/walls indoors and outdoors
    • Indoors and outdoors
    • Mineral substrates in dry, damp and wet areas
    • Packing and mounting mortar for connecting machines, iron and concrete structures as well as wood elements
    • Filling joints between precast units, pre-fab elements and basement slabs
    • Filling cavities
    • Installation of special components
    • Production of sealing coves


    • High early strength
    • Swelling capable
    • Water impermeable
    • Freeze/thaw-resistant
    • Preparation
      • Substrate requirements

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

      • Preparations

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

        Expose the grains close to the surface

        The substrate must have an average pull-off strength of at least 1.5 N/mm²

    • Application
      • Mortar cover / Filling knife / Trowel application / Jointing iron
      • Application temperature: min. 5 °C max. 30 °C
      • Application requirements

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

      • Fill and pack joints so that they are free of cavities.

        Remove any mortar that projects or is pushed out before it hardens and smooth down joints.

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

        Protect wet mortar surfaces against frost, rain and drying out too quickly for at least 4 days.

    • Working tools / cleaning
      • Mortar cover / Filling knife / Trowel application / Jointing iron
      • Mixer, trowel, smoothing trowel, jointing iron

      • 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 coating thickness, or approx. 2.0 kg/dm³

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

        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.

        Alkaline binders may cause a dissolution process on non-ferrous metals.

    • 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.