Coating composition, plaster material, method for making fresco-like plaster wall finish and plaster wall, ceiling, or surface formed thereby
AssigneeWarren J. Nass
InventorsWarren John Nass, Kurt Gutfreund, Eli S. Freeman
Life of this patent
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Abstract
A coating composition giving a fresco-like appearance when mixed with a cement based plaster comprises a latex polymer binder, acrylic polymer binder, or two acrylic polymer cross-linking binders, particulate matter and chemical agents. The plaster composition preferably comprises 35 to 45 percent by weight cement based plaster; 50 to 60 percent by weight coating composition, 2 to 8 percent by weight colorant. A method for preparing a the plaster composition and a plaster wall, ceiling, or other surface comprised of the plaster composition applied to an appropriate wall, ceiling, or surface is also disclosed.
Claims10
A fresco coating composition which, when admixed, with a cement-based plaster produces a material for application by troweling to obtain a fresco finish, said composition being made by combining:
- a) 10 to 30% by weight of at least one binder selected from the group consisting of an acrylic emulsion polymer binder, an acrylic polymer binder and an acrylic polymer cross-linking binder;
- b) 20 to 45% by weight of water;
- c) 5 to 20% by weight of a filler selected from the group consisting of cellulose, paper pulp, mixtures thereof and fine silica sand;
- d) 10 to 30% by weight of at least one water-insoluble particulate extender;
- and
- e) optionally, at least one non-reacting chemical agent selected from the group consisting of solvents, coalescence promoters, 5-15 wt.% thickening agents, surfactants, foam inhibitors, pH adjusters, biocides, mildewcides, colorants and mixtures thereof.
Dependencies are inferred from the claim text.