Professional Gloss Pouring Medium 64oz (Half Gallon) - Improves Paint Flow & Cell Effects Creator, Viscosity Adjuster for Art Acrylic Painting64 Ounce (Half Gallon) Bottle of Pouring Masters Gloss Pouring Effects Medium. A glossy liquid acrylic pouring medium that improves the consistency and flow of paints when doing pouring technique applications. It increases the shine of acrylic pouring paints. A clear gloss medium with acrylic polymers that enable the artists to adjust their acrylic paint viscosity to create amazing poured sheets, puddles, cells, and smooth flowing applications of