Movie Paint's Aging Mud & Dust can be used dry to make dust or wet to make a non-permanent colour mud. To use as a mud, just combine 1-part water with 2-parts powder and mix thoroughly. You can also mix into a thin non-permanent aging tint and use in any kind of pump or sprayer. To use as an aging dust, use the pre-holed container/sifter lid, a powder dispenser, or spray gun.