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Sikagard-680 S Betoncolor, Masonry & Concrete Coating, Exterior, Thixotropic, 20 kg

Sikagard-680 S Betoncolor, Masonry & Concrete Coating, Exterior, Thixotropic, 20 kg

Surface Treatments
SIKA

Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.

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General Specifications
Packaging 20 kg
Usage Long-term protection and decoration for external concrete and masonry
Chemical Base Solvent-based acrylate resin
Usage Area Exterior
Color Thixotropic liquid
Storage Conditions The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging
Density 0,9 kg / L (+20 °C)
Consumption 0,15 kg / m²

Protective Coating for Concrete and Masonry

Sikagard-680 S Betoncolor is a one-part, solvent-based, decorative methacrylic protective coating for concrete and cementitious surfaces. It protects against aggressive atmospheric influences and promotes a self-cleaning effect on the treated surfaces. It is available as a clear coating. Sikagard-680 S Betoncolor complies with the requirements of EN 1504-2 as a protective coating.

  • Good resistance against weathering and ageing.
  • Quick drying.
  • Good opacity (coloured version).
  • Applied by brush, roller or airless spray.
  • Clear coating to maintain decorative exposed aggregate features.
  • Rain resistant within a short time.
  • Maintains the texture characteristics of the surface.
  • High diffusion resistance against CO 2 reducing the rate of carbonation.
  • Water vapour permeable.
  • Reduced tendency to dirt pick-up and contamination.
  • Suitable for sealing of green concrete in civil engineering works.
Usage
As a protective and decorative coating for:
  • The protection and enhancement of concrete and masonry substrates on building and infrastructure elements.
  • Reducing the deterioration of concrete and assisting with controlling the corrosion of any embedded steel reinforcement.
  • Increasing the service life of all types of concrete structures and elements such as buildings, bridges and car parks.
  • Exterior use only.
Suitable for:
  • Protection against ingress (Principle 1, method 1,3 of EN 1504-9).
  • Moisture control (Principle 2, method 2,3 of EN 1504-9).
  • Increasing the resistivity (Principle 8, method 8,3 of EN 1504-9).
 
    Advantages
    • Good resistance against weathering and ageing.
    • Quick drying.
    • Good opacity (coloured version).
    • Applied by brush, roller or airless spray.
    • Clear coating to maintain decorative exposed aggregate features.
    • Rain resistant within a short time.
    • Maintains the texture characteristics of the surface.
    • High diffusion resistance against CO2 reducing the rate of carbonation.
    • Water vapour permeable.
    • Reduced tendency to dirt pick-up and contamination.
    • Suitable for sealing of green concrete in civil engineering works.
    Packaging

    Clear coating

    20 kg container
    Colour

    Thixotropic liquid

    Clear coating

    Final appearance:

    Smooth gloss finish

    • When the product is exposed to prolonged direct sunlight, splashed water containing de-icing salts or sea water, there may be some discolouration, a change in surface finish and colour variation. This has no influence on the function and performance of the product finish.
    Technical Information
    Diffusion Resistance to Water Vapour

    Dry film thickness

    d = 140 µm

    Equivalent air layer
    thickness

    SD, H2O = 2,4 m

    Diffusion coefficientµH2O = 1,8 × 104

    Requirement for
    breathability

    SD, H2O ≤ 5 m

    Carbonation Resistance

    Dry film thickness

    d = 130 µm

    Equivalent air layer
    thickness

    SD, CO2 = 429 m

    Diffusion coefficient CO2µCO2 = 3,3 × 106

    Requirement for
    carbonation resistance

    SD, CO2 ≥ 50 m
    Application Information
    Layer Thickness

    Minimum dry film thickness (DFT) to achieve full durability characteristics (CO2 diffusion, adhesion after thermal cycling, etc.) = 101 μm.
    Maximum DFT to comply with H2O equivalent air thickness of 5 m = 290 μm.
    Ambient Air Temperature

    +5 °C minimum / +35 °C maximum
    Relative Air Humidity

    < 85 %
    Dew Point Substrate and ambient temperature must be at least 3 °C above dew point.
    Substrate Temperature

    +5 °C minimum / +35 °C maximum
    Waiting Time / Overcoating

    Waiting time between coats:

    Temperature

    Time

    +10 °C

    ~8 hours

    +20 °C~5 hours

    +30 °C

    ~3 hours

    Note: Refresher coats of Sikagard-680 S Betoncolor can be applied without priming if the existing coating is fully bonded and is thoroughly cleaned.

    Times are approximate and will be affected by film, thickness and changing ambient conditions particularly temperature and relative humidity.
    Applied Product Ready for Use

    Full cure: ~5 days (+20 °C).

    Dust dry: ~30 minutes (+20 °C).

    Times are approximate and will be affected by film, thickness and changing ambient conditions particularly temperature and relative humidity.