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Sika Anti-Carbonation Crack Bridging System - Concrete Protection Coating

Verified by manufacturer 3 days ago

Sika Limited

High performance crack-bridging concrete and masonry protective coating with sustainability benefits.

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Application

Concrete protection system.

Sikagard®-5500 is used as a decorative coating for:

  • New concrete or reinforced concrete structures (normal, lightweight or fibre-reinforced).
  • Increasing the service life of all types of concrete and masonry structures and elements subject to cracking or cyclic movement such as buildings, bridges, car parks, silos, chimney or retaining walls.
  • Reducing the deterioration of concrete by substantially reducing chloride and carbon dioxide intake.
  • Assisting with controlling the corrosion of any embedded steel reinforcement by reducing the moisture intake.
  • Concrete repair refurbishment works over Sika® pore-filling or levelling mortars.
  • Overcoating existing firmly bonded coatings.
  • Improving the aesthetics of concrete and masonry structures.

The product is used 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).

Description

High performance crack-bridging concrete and masonry protective coating with sustainability benefits.

The Sika Anti-Carbonation Crack Bridging System consists of the following products: Sikagard®-5500 and Sikagard®-552W Aquaprimer.

Sikagard®-552 W Aquaprimer:

A one-part waterborne adhesion promoting primer for water dispersed polymer paint coatings.

Features and benefits:

  • Waterborne - safer to use than solvented products.
  • Water vapour permeable.
  • Good adhesion to concrete.
  • Single component - ready to use.
  • Easy to apply.
  • Compatible with Sika® Anti-Carbonation Coatings.

Sikagard®-5500:

A one-part, water-based, elastic protective coating for concrete and masonry. It has very high static and dynamic crack-bridging abilities that work over a wide temperature range. The durable formulation includes materials derived from renewable sources, thereby reducing the product's carbon footprint.

Features and benefits:

  • Water-based.
  • Applied by brush, roller, or airless spray.
  • One-part, ready to use.
  • Very low VOC emissions.
  • Excellent crack-bridging abilities at low temperatures (-20°C).
  • Very good adhesion to concrete and masonry.
  • High diffusion resistance against carbon dioxide, reducing the rate of carbonation.
  • Permeable to water vapour.
  • Time saving: lower consumption for higher performance.
  • Resistant to cycles of freeze and thaw exposure and de-icing salts.
  • Very good resistance against weathering and ageing.
  • Variable consumption to suit performance requirements.
  • Available in many colours.
  • Good opacity (covering power).
  • Reduced algae and fungal growth.
  • Easy to clean and maintain.
  • Packaging made of recycled materials.
  • Long 24 month shelf life.
  • Reaction to Fire rating of B-s1,d0 (two coats at 500 g/m²).

CE marking and declaration of performance based on EN 1504-2.

General information

Color

Other

Guidance for specification option:

Available in many colours.

White

Finish

Other

Guidance for specification option:

Matt glossy.

Shape

Formless

Length

Bespoke

Width

Bespoke

Height

Bespoke

Uniclass

Ss_15_30_17_16 Concrete protective coating systemsPrimary
Pr_35_31_68_04 Anti-carbonation coatings

CAWS

C42/345 Protective coatings for concrete

Specification data - Concrete protective coating systems

Classification data

System performance

Guidance for specification option:

Insert requirements.

Coatings

-

Protective treatment

Sikagard®-552 W Aquaprimer.

Manufacturer guidance

  • Sikagard®-552 W Aquaprimer is a one-part waterborne adhesion promoting primer for water dispersed polymer paint coatings.
  • Sikagard®-552 W Aquaprimer is part of a system that is in scope of the requirements of EN 1504-2 as a protective coating.

Protective coat

Sikagard®-5500.

Guidance for specification option:

Insert colour requirements separately, below.

Manufacturer guidance

Sikagard®-5500 is a one-part, white, water-based, elastic protective coating for concrete. The very high static and dynamic crack-bridging abilities work in a wide temperature range and reduce required consumption. The durable formulation includes materials derived from renewable sources, thereby reducing the product's carbon footprint.

Colour

White RAL 9016.

Guidance for specification option:

Standard.

Other.

Guidance for specification option:

Sikagard®-5500 is available in many colours; consult manufacturer for colour range and insert requirements.

  • Applied colours selected from colour charts will be approximate.
  • For colour matching apply colour sample and confirm selected colour under real lighting, environmental and substrate conditions.
  • When the product is exposed to direct prolonged sunlight, there may be some discolouration and colour variation. Darker colours are more likely to be affected than lighter shades.

Composition

Chemical base:
Sikagard® 552 W Aquaprimer: acrylate dispersion.
Sikagard®-5500: acrylate dispersion, 100 % derived from renewable feedstock.

Density

Sikagard® 552 W Aquaprimer: ~1.0 kg/L (at 20°C).
Sikagard®-5500, to EN ISO 2811-1: ~1.37 kg/L (at 20°C).

Reaction to fire

Sikagard®-5500, to EN 13501-1: B-s1, d0 (2 x 500 g/m²).

Tensile Adhesion

Sikagard®-5500, to EN 1542: 1.9 MPa.

Capillary absorption

Sikagard®-5500, to EN 1062-3: w = 0.01 kg/(m²·√h).

Water vapour permeability

Sikagard®-5500:
Consumption: 2 x 500 g/m²;
Dry film thickness: d = 370 µm;
Equivalent air layer thickness: SD, H₂O = 3.7 m;
Diffusion coefficient H₂O: µH₂O = 881;
Requirements for breathability: ≤5 m.

Weathering resistance

Sikagard®-5500:
Cycles of 4 h UV-B radiation (60°C) + 4 h condensation (50°C).
After 2000 hours, samples show no blistering, no cracking and no flaking.

Freeze/ Thaw Resistance

Sikagard®-5500: de-icing salt resistance to EN 13687-1, 1.7 (1.65) N/mm².

Literature

Sikagard®-552 W Aquaprimer - Product  Data Sheet

Sikagard®-552 W Aquaprimer - Product Data Sheet

Sikagard®-5500 - Product Data Sheet

Sikagard®-5500 - Product Data Sheet

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