This thick, matte and opaque gel painting medium is a 100% polymer emulsion that dries more slowly than other modeling pastes to a hard yet flexible surface. It can be used to build three-dimensional forms and heavy textures on supports that may be subject to flexing or movement. It adheres to most non-oily, absorbent surfaces. It can be applied with palette knife, trowel, paintbrush, cake decorating tips and more to create a variety of effects. When mix with acrylic colors, will act as a weak tinting white, while increasing thickness and rigidity. It should be varnished with care to avoid foaming or clouding.