A mat-faced gypsum board and method of making thereof is provided having a
particulate matter applied on an inner surface of the facer mat and
extending partially into the mat from the inner surface thereof. The
particulate matter, which is preferably a hydratable powder such as
calcium sulfate hemihydrate, minimizes and, preferably, prevents bleed
through of a gypsum slurry during formation of the gypsum board.