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Method of producing opaque adherent coating on the surface of substantially hydrated cementitious substrate

  • US 6,045,871 A
  • Filed: 05/22/1997
  • Issued: 04/04/2000
  • Est. Priority Date: 06/07/1996
  • Status: Expired due to Fees
First Claim
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1. A method of producing an opaque adherent coating on a surface of a substantially hydrated cementitious substrate, said method consisting essentially of the steps of:

  • applying a layer of a waterborne storage stable sealer comprising an aqueous medium containing a binder polymer and an opacifying polymer on said surface of said cementitious substrate; and

    drying said layer to substantially hide primary efflorescence on said surface of said cementitious substrate to produce said opaque adherent coating having a desired degree of opacity and adhesion to said cementitious substrate surface.

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