Product Data Sheet Show all documents
Sikagard®-680 S Betoncolor

Sikagard®-680 S Betoncolor

Protective coating for concrete

Sikagard®-680 S Betoncolor is a 1-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 in clear and coloured versions. Sikagard®-680 S Betoncolor complies with the requirements of EN 1504-2 as a protective coating.

  • Good resistance against weathering and ageing
  • Quick drying
  • Available in many colours
  • 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
Product Data Sheet Show all documents

Usage

As a protective and decorative coating for:
  • The protection and enhancement of concrete cementitious 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 to all types of concrete structures and elements such as buildings, bridges, 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
    • Available in many colours
    • 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

    Coloured coating

    30 kg containers

    Colour

    Thixotropic liquid

    Clear coating

    Final appearance:
    Smooth gloss finish

    Coloured coating

    		Final appearance:
    Smooth matt finish
    • Available in VicRoads grey, white and clear glaze.
    • 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.

    Product Details

    Sustainability / Certifications / Approvals

    CERTIFICATES AND TEST REPORTS

    • CE Marking and Declaration of Performance to EN 1504-2 - Surface protection product for concrete - Coating
    • Surface Protection System OS-B TL/TP OS, ZTV-SIB 90, Sikagard®-680 S Betoncolor, Institut für Bauforschung, Test report No. A3026/B2
    • Surface Protection System OS-C TL/TP OS, ZTV-SIB, Sikagard®-680 S Betoncolor, Institut für Bauforschung, Test report No. A 2216/C1
    • Surface Protection System TL/TP OS, ZTV-SIB 90, Sikagard®-680 S Betoncolor, Polymer Institut, Test report No. P 3132-1
    • Surface Protection System DIN EN 1504-2, Sikagard®-680 S Betoncolor / Sika MonoTop®-622, Sika Deutschland GmbH, Test report No. OS 4 622-680
     
    Product Information

    Composition

    Solvent-based acrylate resin

    Shelf life

    36 months from date of production

    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

    Clear coating

    ~0,9 kg/l (+20 °C)

    Coloured coating

    ~1,4 kg/l (+20 °C)

    Product declaration

    EN 1504-2: Surface protection product for concrete - Coating

    Flash point

    Clear coating

    ~+25 °C

    Coloured coating

    ~+30 °C

    Solid content by volume

    Coloured coating~45 %
    System information

    System structure

    Clear coating

    ProductNumber of coats
    Sikagard®-680 S Betoncolor

    2


    Coloured coating

    ProductNumber of coats
    Sikagard®-680 S Betoncolor2 (with or without primer)
    Sikagard®-680 S Betoncolor for bright yellow and red colour shades3
    Sikagard®-702 W hydrophobic impregnation primer1–2
    Sikagard®-700 S hydrophobic impregnation primer1–2

    Note:In marine environments or if the concrete surface is exposed to splashes of de-icing salts, use a hydrophobic impregnation primer for improved protection and durability.
    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

    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 min. / +35 °C max.

    Relative air humidity

    < 85 %

    Dew point

    Substrate and ambient temperature must be at least 3 °C above dew point.

    Substrate temperature

    +5 °C min. / +35 °C max.

    Waiting time to 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.

    Curing treatment

    Sikagard®-680 S Betoncolor does not require any special curing but must be protected from rain for at least 1 hour at +20 °C

    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.
    Consumption

    Consumption

    Product

    Per Coat

    Sikagard®-680 S Betoncolor Clear coating

    ~0,15 kg/m2

    Sikagard®-680 S Betoncolor Coloured coating

    ~0,20 kg/m2

    These figures are theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.
    Application steps

    EQUIPMENT

    Preparation equipment

    • Steam cleaning equipment
    • Abrasive blast cleaning equipment
    • High-pressure water jetting equipment

     

    Application equipment

    • Brush
    • Short pile fleece roller
    • Airless spray pressure: 150 bar, nozzle diameter: 0,38 to 0,66 mm, angle: 50° to 80°

    APPLICATION

    Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

    Note:Confirm waiting / overcoating times of any previous coats is achieved before applying subsequent coats. (Refer to waiting / overcoating time in Application Information)

    Note:Confirm product application conditions: substrate moisture content, substrate, air and product temperatures, relative humidity and dew point (Refer to Application information).

    Primer coat (If required)

    1. Apply the primer evenly over the surface at the required consumption. Refer to the appropriate Product Data Sheet.
    2. Protect primer from rain before applying protective coating.

    Protective coating

    Note:The product is supplied ready for use. For the coloured version, before application, mix for 2 minutes using a low speed electric single paddle mixer or similar equipment. Mix the liquid and all the coloured pigment until a uniform colour has been achieved.

    Note:For the coloured coating, on very absorbent and/or porous substrates, it is recommended to mix in ~50 % of Sikagard®-680 S Betoncolor (Clear version)  into the Sikagard®-680 S Betoncolor (Coloured version) for the first coat.

    Manual application

    1. Apply the Product evenly over the surface with a brush or short pile fleece roller at the required consumption.
    2. Control the layer thickness during application using a thickness gauge.
    3. To achieve a smooth finish, smooth the surface with a brush.
    4. The coating must be continuous, pore free and to the required surface finish.
    5. Protect the Product from rain for at least 24 hours.
    6. Apply additional coats as required.

    Spray application

    1. Spray apply the Product in a continuous operation and at a speed to achieve a consistent thickness and surface finish.
    2. Control the layer thickness during application using a thickness gauge.
    3. The coating must be continuous, pore free and to the required surface finish.
    4. Protect the Product from rain for at least 24 hours.

    Apply additional coats as required.

     

    Sealing green concrete

    1. Apply the Product evenly over the surface with a brush, short pile fleece roller or air less spray at the required consumption.
    2. The coating must be continuous and pore free.
    3. Protect the Product from rain for at least 24 hours.
    4. Apply additional coats as required.

    CLEANING OF EQUIPMENT

    Clean all tools and application equipment with Sika Thinner C immediately after use. Hardened material can only be removed mechanically.

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