Patent ID: 8058342

Claim:
A composition for sealing and protecting at least one asphalt shingle or other porous construction materials consisting essentially of: (a) about 20% by weight to about 28% by weight of an acrylic polymer; (b) about 0.01% by weight to about 4% by weight of a silicone surfactant; (c) about 0.001% by weight to about 4% by weight of a UV inhibitor; and (d) about 0.001% by weight to less than 0.06% by weight of a biocide, with the remainder being water, wherein the remain the composition contains about 20% to about 30% solids by weight, the UV inhibitor is 2-Hydroxy-4-n-octyloxybenzophenone, the biocide is copper sulfate, and all weight percentages are based on a total weight of the composition.