In combination with acrylic paint, Amsterdam Acrylic Mediums help unleash the limitless possibilities in which painting can take form. Made from the highest quality, clear drying materials. Artists and crafters can add volume and dimension to their artwork, extend color and achieve a variety of effects using these gel mediums. They may also be used with mixed media or craft projects to permanently adhere a variety of materials on virtually any clean, slightly absorbent surface. The mediums clean up easily with water and are non-hazardous.