Explore a wide selection of paint mediums and varnishes foracrylic paint,oil paint,watercolors, and more. Mediums for painting change the texture of paint and slow down and speed up the drying time. Experiment with a with variety of effects, including sand textures, marbleized paint pours, and thick wax applications. Use a varnish on top of your paintings as a protective layer or to make paint more glossy or matte. Varnishes can also be used to create antique and crackle effects.