Method of producing opaque adherent coating on the surface of substantially hydrated cementitious substrate
First Claim
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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Accused Products
Abstract
A method of producing an opaque adherent coating on the surface of a substantially hydrated cementitious substrate is provided. A waterborne storage stable sealer comprising an aqueous medium containing a binder polymer and an opacifying polymer is applied on the surface of such a cementitious substrate. Upon drying the layer substantially hides the primary efflorescence typically present on the surface of the cementitious substrate. Applicants have unexpectedly discovered that by optimally adjusting the thickness of the coating a weight amount of waterborne storage stable sealer solids in the waterborne storage stable sealer and a pigment volume content of the opacifying polymer in the storage stable sealer the opaque adherent coating is produced on the surface of the substantially hydrated cementitious substrate.
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Citations
15 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15)
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8. 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:
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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; drying said layer to substantially hide primary efflorescence on said surface of said cementitious substrate; and applying a topcoat of a paint composition thereon to produce said opaque adherent coating having a desired degree of opacity and adhesion to said cementitious substrate surface.
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9. 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:
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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, wherein a weight amount of waterborne storage stable sealer solids in said waterborne storage stable sealer, thickness of said adherent opaque layer, and various permutations thereof are optimally adjusted to produce said opaque adherent coating having a desired degree of opacity and adhesion to said substantially hydrated cementitious substrate.
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10. A method of producing an opaque adherent coating on a surface of a cementitious article, said method consisting essentially of the steps of:
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forming said cementitious article; 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 article; and drying said layer to substantially hide primary efflorescence on the surface of said cementitious article; and to produce said opaque adherent coating having a desired degree of opacity and adhesion to said cementitious article. - View Dependent Claims (11, 12, 13, 14)
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Specification