Antimicrobial coatings for treatment of surfaces in a building setting and method of applying same
Antimicrobial coatings to protect surfaces and a method of applying such a coating are disclosed. An antimicrobial coating may be applied to a surface, such as the interior surface of a building's exterior wall. The interior surface must be accessed, and then an antimicrobial coating is provided and applied. The antimicrobial coating includes an inorganic antimicrobial additive and a colloidal polymeric medium. The inorganic antimicrobial additive may be silver, platinum, gold, palladium, copper, zinc, boron, or a compound of any of those elements. By including an ultraviolet tracer or color dye additive in the coating, it is possible to detect the coating at any time, provided that the surface is accessed.
1. An antimicrobial coating composition, comprising:
a. an inorganic antimicrobial additive with particles having a diameter of 2 to 3 microns, wherein the particles include one of the group consisting of silver, platinum, gold, palladium, copper, zinc, boron, and a compound of any of the foregoing elements;
b. a colloidal polymeric medium with polymeric resin particles having a size smaller than the particles of the inorganic antimicrobial additive; and
c. water.
2. An antimicrobial coating composition according to claim 1 , wherein the polymeric resin particles are of a size between 0.005 micron and less than 1 micron in diameter.
3. An antimicrobial coating composition according to claim 1 , wherein the inorganic antimicrobial additive includes a compound comprising silver loaded zeolite.
4. An antimicrobial coating composition according to claim 3 , wherein the colloidal polymeric medium is a polyester.
5. An antimicrobial coating composition according to claim 2 , wherein the colloidal polymeric medium is a polyurethane.
6. An antimicrobial coating composition according to claim 2 , wherein the colloidal polymeric medium is an acrylic.
7. An antimicrobial coating composition according to claim 2 , further comprising an ultraviolet stabilizer.
8. An antimicrobial coating composition according to claim 2 , further comprising an anti-settling agent.
9. An antimicrobial coating composition according to claim 2 , further comprising a dispersing agent.
10. An antimicrobial coating composition according to claim 2 , wherein the coating is hydrophilic.
11. An antimicrobial coating composition according to claim 2 , further comprising a color dye additive.
12. An antimicrobial coating composition according to claim 11 , wherein the color dye additive is a blue dye.
13. An antimicrobial coating composition according to claim 2 , further comprising an ultraviolet tracer.
14. An antimicrobial coating composition according to claim 2 , wherein the coating is translucent.
15. An antimicrobial coating composition according to claim 2 , wherein the resin particles have a size between 0.005 and 0.015 microns in diameter.