Sikagard®-550 W Elastic - Anti-Carbonation Coating
Verified by manufacturer 4 months ago
Crack bridging protective coating for concrete.
Application
Sikagard®-550 W Elastic is used for protection and enhancement of concrete structures (normal and lightweight concrete), especially exposed outdoor concrete surfaces with a risk of cracking.
Sikagard®-550 W Elastic is used with concrete repair works as an elastic protective coating on Sika® smoothing mortar (refer to relevant product / system data sheet), fibre cement and overcoating of existing soundly adhering coatings.
- Suitable for protection against ingress (Principle 1, method 1.3 of EN 1504-9).
- Suitable for moisture control (Principle 2, method 2.3 of EN 1504-9).
- Suitable for increasing the resistivity (Principle 8, method 8.3 of EN 1504-9).
Description
Sikagard®-550 W Elastic is a one component, plastoelastic coating based on UV-curing acrylic dispersion with excellent crack-bridging properties even at temperatures below 0 °C. Sikagard®-550 W Elastic complies with the requirements of EN 1504-2 as protective coating.
Features and benefits:
- Crack-bridging even at low temperatures (-20°C).
- High diffusion resistance against CO2 reducing the rate of carbonation.
- Water vapour permeable.
- Very good resistance against weathering and ageing.
- Environmentally friendly (solvent free).
- Reduced tendency to dirt pick up and contamination.
- The system is resistant to aggressive atmospheric influences.
- CE marked.
General information
Color | Other Beige Black Blue Brown Manufacturer guidanceMultiple RAL shades available on request |
Finish | Matt |
Shape | Formless Manufacturer guidanceAcrylate dispersion |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | One year |
Uniclass | |
CAWS | C42/340 Crack/ void sealing grouts |
Specification data - Liquid emulsion crack sealant
Material | Acrylate dispersion. |
Density | ~1.39 kg/L (at +20°C). |
Elongation at break | Room temperature120%. (–20°C: 70%). |
Tensile Adhesion | 2.9 (2.8) N/mm² (to EN 1542). |
Crack bridging | Class A1 (-20°C) - 2 coats, Class B2 (-15°C) - 3 coats (EN 1062-7) |
Freeze thaw cycle | 2.9 (2.1) N/mm² (EN 13687-1 and -2). |
Water vapour diffusion resistance | Dry film thickness d = 230 μm. Diffusion coefficient H2O μH2O = 1.5 × 10^3. (To EN ISO 7783-1 and -2). |
Capillary absorption | w = 0.02 kg/(m²h0.5) (to EN 1062-3). |
Carbonation resistance | Dry film thickness d = 160 μm. Diffusion coefficient CO2 μCO2 = 3.1 × 10^5 (To EN 1062-3). |
Colour: | Manufacturer guidanceMultiple RAL shades available on request |
Sustainability data
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Literature
Sikagard 550w Elastic Safety data sheet
Sikagard 550w Elastic Product Datasheet
Case studies
Christ Church URC, Chelmsford