• ZM HF [basic]

    Article No. 022001

    ZM HF [basic]

    Mortar improver based on an aqueous polymer dispersion

    Product specifications

    On delivery

    Density (20°C) Approx. 1.08 g/cm³
    pH value Approx. 9.0
    Polymer content Approx. 30%
    Adhesive shear strength Up to 4 N/mm²

    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
    • Preparation of bonding grouts, bonding mortars, patch and repair mortars
    • Improvement of screeds, renders and touch-up layers
    • Primer for concretes, cement and anhydrite screeds


    • Water-based
    • Improves adhesive bonding
    • Increases compressive strength
    • Increases flexural strength
    • Saponification resistant
    • Preparation
      • Substrate requirements

        The substrate must be clean, solid and free of oils, grease and release agents.

        The substrates may be slightly damp but must not have a film of liquid.

    • Application
      • Application temperature: min. 5 °C max. 25 °C
      • Broom / Trowel / Filling knife
      • Application requirements

        Temperature of the material, air and substrate: from min. +5°C to max. +25°C

      • Mortar improvement

        Dilute the material with water and mix well (observe the correct mixing ratio).

        Use mixture as mixing water for the mortar.


        Adhesive primer

        Dilute the material with water and mix well (observe the correct mixing ratio).

        Apply the mixture evenly over the prepared substrate.

        In the case of highly absorbent substrates, repeat the process within 24 hours if necessary.


    • Application instructions
      • Always dilute the material with water.

        Do not let excess material build up on the surface.

        Take appropriate measures to protect adjacent building elements and materials that should not come into contact with the product.

    • Working tools / cleaning
      • Broom / Trowel / Filling knife
      • Wide brush, broom, spatula or trowel

      • Clean tools, equipment and splashed material immediately while fresh with V 101 Thinner.

    • Storage / shelf life
      • Store frost-free and cool / protect for moisture / close containers
      • Shelf-life 24 months
      • If stored unopened in its original container in a cool, dry place and protected against frost, the product will keep for at least 24 months.

    • Usage
      • Depending on the application / m²
      • For bonding layers, grouts: approx. 0.1 - 0.2 kg/m²
        For bonding mortar: approx. 1.0 kg on 1 - 2 m², depending on the layer thickness

      • Apply to a large enough trial area to determine the precise amount required.

    • Application examples

      • ApplicationParticle sizeLayer thicknessMixing water ratio
        Haftfest : water
        Fine mortar< = 0.5 mmup to 2 mm1 : 1
        Bonding grout< = 1 mmup to 3 mm1 : 1
        Bonding mortar< = 2 mmup to approx. 5 mm1 : 2
        Rough cast< = 4 mmup to approx. 6 mm1 : 3
        Concrete replacement< = 4 mmapprox. 8 - 15 mm1 : 3
        Bonded screed< = 4 mmup to 40 mm1 : 4
        Fine-grained concrete< = 8 mmup to 50 mm1 : 5
        Primer for concretes, cement
        and anhydrite screeds

        1 : 3
        Bonding improver for
        waterproofing grouts

        1 : 3

    • General information
      • Always set up a trial area/trial areas first.

        Deviations from applicable regulations must be agreed separately.

        The relevant test certificates must be observed when planning and carrying out work.

    • 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.