Golden's GAC Mediums are the raw materials from which other acrylic mediums are created. Use them to modify the working characteristics and appearance of Golden Acrylics and other acrylic paints.
GAC 200: Acrylic Polymer for Increasing Film Hardness — The hardest and least flexible polymer. Mix with acrylic paints to increase film hardness and reduce dry film tack. Useful for adhering acrylic paints to nonporous surfaces such as glass or plastic. Dries to a clear, gloss finish.