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Sikagard-551 S Elastic Primer, Solvented Primer for Dense/Porous Concrete Surfaces, Exterior, Slightly Yellowish

Sikagard-551 S Elastic Primer, Solvented Primer for Dense/Porous Concrete Surfaces, Exterior, Slightly Yellowish

Primers, Paints & Pigments
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 10 L
Chemical Base Solvent based polymer binder
Usage Primer for very dense or porous concrete in Sikagard systems
Application Method Brush or roller
Usage Area Exterior
Color Slightly yellowish
Service Temperature +5 °C min. / +35 °C max.
Storage Conditions Store in cool and dry conditions. Protect from direct sunlight and frost.
Density ~0.94 kg/l (at +20 °C)
Consumption 0.10–0.15 kg/m2dependent on the absorbency of the substrate

Sikagard®-551 S Elastic Primer is a one-component, solvent containing primer for very dense or very porous concrete surfaces and/or difficult application conditions.
Sikagard®-551 S Elastic Primer is part of a system that complies with the requirements of EN 1504-2 as protective coating.

  • Deep penetration
  • Water vapour permeable
  • Surface strengthening
Usage
Priming of very dense concrete and of very porous concrete (having a tensile strength lower than 1 N/mm2)
Sikagard®-551 S Elastic Primer can also be used as primer on firmly adhering existing solvent based coatings   Sikagard®-551 S Elastic Primer is part of the Sikagard® acrylic coating system:
  • 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)
Advantages
  • Deep penetration
  • Water vapour permeable
  • Surface strengthening
Packaging

10 l and 20 kg pails
Colour

Slightly yellowish liquid
Application Information
Ambient Air Temperature

+8 °C min. / +35 °C max.
Relative Air Humidity

< 80 %
Dew Point

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

+8 °C min. / +35 °C max.
Waiting Time / Overcoating

Waiting time before coating:

Temperature

Time

+8 °C

36 hours

+20 °C18 hours

+35 °C

8 hours

Note: When application is on existing coating, waiting time prior to overcoat the primer will increase by 100 %.
Both water dispersed and solvent containing coating system can be used as subsequent topping.
Curing Treatment

Sikagard®-551 S Elastic Primer does not require any special curing but must be protected from rain for at least 6 hours at +20 °C.