Antimicrobial and antiviral building panels
Described herein is a building panel comprising: a substrate, and a coating applied to the substrate, the coating comprising a blend of an antimicrobial composition, a binder, and a pigment, wherein the antimicrobial composition consists essentially of zinc borate.
1. A building panel comprising:
a substrate; and
a coating applied to the substrate, the coating comprising a blend of:
an antimicrobial composition present in an amount ranging from about 2 wt. % to about 15 wt. %, based on the total dry-weight of the coating;
a polymeric binder comprising carboxylated polyvinyl acetate homopolymer;
a rheology modifier comprising hydroxyethyl cellulose;
a flame retardant comprising aluminum hydroxide; and
a pigment blend;
a hydrophobic agent comprising paraffin wax and polyethylene;
wherein the antimicrobial composition consists of zinc borate.
2. The building panel according to claim 1 , wherein the hydrophobic agent is present in an amount ranging from about 1 wt. % to about 8 wt. %.
3. The building panel according to claim 1 , wherein the antimicrobial composition is present in an amount ranging from about 7 wt. % to about 12 wt. %, based on the total weight of the coating.
4. The building panel according to claim 1 , wherein the coating is present on the substrate in an amount ranging from about 50 g/m 2 to about 400 g/m 2 .
5. The building panel according to claim 1 , wherein pigment is present in an amount ranging from about 40 wt. % to about 80 wt. %, based on the total weight of the coating.
6. The building panel according to claim 1 , wherein the substrate is a porous structure and the building panel is an acoustical ceiling panel.
7. The building panel according to claim 6 , wherein the porous structure comprises a fibrous material.
8. The building panel according to claim 1 , wherein the coating is free of triazole compounds.
9. A ceiling system comprising:
a support frame; and
at least one building panel according to claim 1 ,
wherein the building panel is supported by the support frame.
10. The building panel according to claim 1 , wherein the pigment blend comprises a blend of titanium dioxide and calcium carbonate.
11. The building panel according to claim 1 , wherein the substrate comprises mineral wool.
12. The building panel according to claim 1 , wherein the rheology modifier is present in an amount ranging from about 0.1 wt. % to about 0.5 wt. % based on the total dry-weight of the coating.