An aqueous emulsion for imparting water repellency characteristics to gypsum
products
comprising: a) a hydrocarbon wax: b) a polyolefin-maleic anhydride graft polymer;
and c) a polyvinyl alcohol composition comprising partially and/or fully hydrolyzed
polyvinyl acetate. The emulsion may also contain other known ancillary components
such as emulsifiers and stabilizers.