Protective coatings for inorganic substrates and coated inorganic substrates
A composition for protecting a surface of an inorganic substrate, such as concrete, terrazzo, or ceramic tile, includes a silicate (i.e., an alkali metal polysilicate or a colloidal silica), a siliconate (e.g., a metal siliconate, such as an alkali metal methyl siliconate, etc.), acrylic latex, a silane coupling agent, and a solvent, such as ethylene glycol monobutyl ether. Inorganic substrates, such as concrete, stone, and ceramic materials, with such a composition on their surfaces are also disclosed, as are methods for polishing and protecting inorganic substrates.
1. A composition for protecting surfaces of inorganic substrates, comprising:
a silicate making up about 20% to about 50% of the weight of the composition;
a siliconate making up about 2% to about 15% of the weight of the composition;
an acrylic latex;
a silane coupling agent making up about 1% to about 10% of the weight of the composition;
a solvent;
a leveling agent; and
water.
2. The composition of claim 1 , wherein the silicate comprises lithium polysilicate.
3. The composition of claim 1 , wherein the silicate comprises colloidal silica.
4. The composition of claim 3 , wherein the solvent comprises at least one of ethylene glycol monobutyl ether, dipropylene glycol dimethyl ether and dipropylene glycol n-butyl ether.
5. The composition of claim 4 , wherein:
the ethylene glycol monobutyl ether makes up about 0.5% to about 2% of the weight of the composition.
6. The composition of claim 1 , comprising a surfactant.
7. The composition of claim 6 , wherein the surfactant comprises a fluorosurfactant.
8. The composition of claim 1 , wherein the leveling agent comprises a tris(2-butoxyethyl) phosphate having the chemical formula C 18 H 39 O 7 P.
9. The composition of claim 1 , wherein the silane coupling agent comprises N-β (aminoethyl)-r-aminopropyl-trimethoxysilane.
10. A composition for protecting surfaces of inorganic substrates, comprising:
a silicate making up to 20% to about 50% of the weight of the composition;
a siliconate making up about 2% to about 15% of the weight of the composition;
an acrylic latex;
a silane coupling agent making up about 1% to about 10% of the weight of the composition; and water.
11. The composition of claim 10 , wherein the silicate comprises lithium polysilicate.
12. The composition of claim 10 , wherein the silicate comprises colloidal silica.
13. The composition of claim 10 , wherein:
the acrylic latex makes up about 4% to about 50% of the weight of the composition.
14. The composition of claim 10 , further comprising:
a leveling agent.
15. A composition for protecting surfaces of inorganic substrates comprising:
a silicate;
a siliconate;
a silane coupling agent making up about 1% to about 10% of the weight of the composition; and
water.
16. The composition of claim 15 , wherein the silicate comprises lithium polysilicate.
17. The composition of claim 15 , wherein the silicate comprises colloidal silica.
18. The composition of claim 15 , wherein:
the silicate makes up about 20% to about 50% of the weight of the composition; and/or
the siliconate makes up about 2% to about 15% of the weight of the composition.
19. The composition of claim 15 , wherein the silane coupling agent comprises N-β (aminoethyl)-r-aminopropyl-trimethoxysilane.
20. The composition of claim 15 , further comprising:
a solvent.
21. The composition of claim 15 , further comprising:
at least one of a leveling agent and surfactant.