COATING FOR GRANULATED PRODUCTS TO IMPROVE GRANULE ADHESION, STAINING, AND TRACKING

摘要

A building material product and a method of making building material products, having increased resistance to granule rub off and staining. The building material product comprises a substrate having embedded granules and an acrylic latex coating positioned on the granules, where the polymer of the acrylic latex coating has the repeating structural unit [CH₂-C (R¹)(R²)], where R¹ is hydrogen or C₁-C₈ alkyl; R² is hydrogen, cyano or -COOR; and R is a linear or branched hydrocarbon containing 1-22 carbon atoms, with the proviso that R¹ and R² are both not hydrogen. The method includes applying this acrylic latex water based composition to a granule embedded substrate.