Artisan Enhancements Scumble A translucent, glaze-like, medium and extender used to increase the open time of paint. A tintable medium used to create custom color glaze mixes. Can be tinted with a variety of pigments and paint sources. Once tinted, Scumble is slow drying and provides a longer working time. Can be used to manipulate and create traditional glaze effects on sealed or prepared painted surfaces. Great for a variety of interior projects such as: furniture, cabinetry, decorative arts, and walls.