Sherwin-Williams patents anti-slip

February 11, 2009

Patent No. U.S. 7,348,061 B2
The Sherwin-Williams Company has been granted a patent for a substrate coated with a multi-layer coating wherein the multi-layer coating is comprised of a zinc particle containing primer applied directly to the substrate; a second coating applied to the zinc particle containing primer layer, the second coating is comprised of a binder comprised of a polyepoxide and a polyamine; a micaceous pigment selected from the group consisting of mica and micaceous iron oxide and blends thereof; and at least one other pigment; wherein the micaceous pigment is present at a level of at least 4% PVC based on total volume solids of the second coating, and the total PVC of the second coating is at least 35%.