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Sika Concrete Primer Product Data Sheet


Sika® Concrete Primer is a two component, rapid curing, high solids, solvent-based primer, consisting of: a solvent-based polyurethane resin (Part A), and a hardener (Part B). It is designed for sealing cementitious substrates to reduce the incidence of outgassing. In its wet mixed state,Sika® Concrete Primer is amber in color.

Where to Use

Suitable for use on most sound substrate surfaces where both a penetrative and surface-lying effect is required.


  • Significantly reduces the likelihood of blistering and pin holing.
  • Very fast curing formulation.
  • Combines rapid cure time with a long pot life.
  • Compatible with most concrete, masonry, and stone substrate materials.


  • 225 to 375 ft.2/gal, depending on substrate profile and porosity
  • 225 ft.2/gal on prepared, dry concrete and masonry (CSP3 surface preparation)
  • Note: On porous/open substrates, apply as two coats, each at a maximum spread rate of 270 ft.2/gal.

Cure Mechanism

  • Chemical cure.

Chemical Resistance

  • Not intended for direct exposure 


  • 4.5 L. kit (3.5 L Part A, 1.0 L.Part B);
  • 23 L (2 x 11.5 L) kit (2 x 9.0 L Part A, 2 x 2.5 L Part B)

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