• CEM rapid
  • CEM rapid
  • REM_0000283415_CEM_rapid_ML.tif
    • CEM rapid
    • CEM rapid
    • REM_0000283415_CEM_rapid_ML.tif

    Article No. 283415

    CEM rapid

    Chloride-free, fast-setting cement for universal use

    Colour: grey | 2834
    Size / Quantity

    Brochures and Catalogues


    Product specifications

    Load-bearing capacity (20 °C) Approx. 15 minutes
    Compressive strength 30 min = approx. 10 N/mm²
    24 h = approx. 25 N/mm²
    28 days = approx. 50 N/mm²
    Initial setting (20 °C) Approx. 5 minutes
    Water requirement 1.4-1.8 l/6 kg
    6.0-7.5 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
    • Fast-setting mortar for quick mounting of add-on parts
    • Rapid repair of leaking areas, seepage areas and water inrushes
    • Casting with open and closed moulds
    • Accelerator for mortars with normal setting properties


    • Very high early and final strength
    • Reacts within minutes (5 minutes)
    • Water impermeable
    • Freeze/thaw-resistant
    • Can be mixed with cements as per DIN EN 197-1
    • Preparation
      • Substrate requirements

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

      • Preparations

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

    • Application
      • Application temperature: min. 5 °C max. 30 °C
      • mortar cover / Filling knife / Curtain coating / Jointing iron
      • Drying time: can be worked over after 3 minutes
      • Application requirements

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

      • Quick mounting

        Fill the assembly area with material, applying light pressure.



        Add 10-20% by weight of the material, depending on the desired setting time, to the cement mortar.

    • 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.

        Leftover product in the mixing containers accelerates setting.

    • Working tools / cleaning
      • mortar cover / Filling knife / Curtain coating / Jointing iron
      • Mixer, trowel, filling knife

      • Clean tools with water while the material is still fresh.

    • Storage / shelf life
      • Store dry, protect for moisture / close containers
      • 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 kg / l void
      • Approx. 2.0 kg/l void

    • General information
      • Do not use on gypsum-based substrates.

        The mixing water must be of drinking water quality.

        May contain traces of pyrite (iron sulphide).

        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.

        Current regulations and legal requirements must be taken into account and deviations from these 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.