• Stucco GF RZ

    Article No. 056915

    Stucco GF RZ

    Fast-setting, pourable mortar on a natural cement base for the production of stucco elements

    brown-beige (intrinsic colour) | 0569
    Size / Quantity



    Product specifications

    On delivery

    Compressive strength (28 d) > 2.5 N/mm² - CS II - M2.5
    Dynamic E-modulus Approx. 4500 N/mm²
    Bulk density of fresh mortar Approx 1.5 kg/dm³
    Particle size < 0.5 mm
    Air void content ≤ 10%
    Bulk density Approx. 1.0 kg/dm³
    Water requirement Approx. 5 l /15 kg

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

    Field of application

    • For use indoors and outdoors
    • For use on historic buildings constructed before 1914 using natural cement
    • On-site production of stucco elements by pouring


    • Swelling capable
    • Grain size: < 0.5 mm
    • Compressive strength: > 2.5 N/mm² (M2.5)
    • This natural cement has been produced to the same formulation for more than 150 years and is also called Roman cement. It is based on a lime-marl from the Cretaceous period traditionally fired in a shaft kiln at low temperature.
    • Preparation
      • Substrate requirements

        The mould must be clean and free of dust.

    • Application
      • Curtain coating
      • Application temperature: min. 5 °C max. 30 °C
      • Allow the mortar to flow slowly and evenly into the mould.

        Depending on its shape and size, the stucco element can be de-moulded and finished after approx. 3 hours.

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

        Wet elements should be protected from frost and rain for at least 4 days to allow them to set quickly.

        Hairline/shrinkage cracks are safe and are not cause for complaint as they do not impair the properties of the mortar.

        If the elements are particularly long, they must be reinforced in order to prevent breakage.

    • Working tools / cleaning
      • Curtain coating
      • Mixing tool, smoothing trowel, pointer, universal funnel

      • Clean tools and equipment with water before the mortar sets.

    • Storage / shelf life
      • Protect form moisture
      • Shelf-life 6 months
      • Dry, in unopened containers, 6 months.

    • Usage
      • 1.2 kg / l void
      • Approx. 1.2 kg/l void

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

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

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

        Always set up a trial area/trial areas first.

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

        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.