Product Data Sheet
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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
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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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