Method for coating 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.

主权项

1. A method for making a building material product, the method comprising:
providing a building product substrate; coating granules with an acrylic latex water based composition to form encapsulated granules, wherein said acrylic latex water based composition comprises an acrylic polymer; and embedding said encapsulated granules into said building product substrate.