Dirty Down: Soot Black Ageing SprayAgeing sprays are water soluble, semi transparent sprays for ageing costumes and props. One quick spray deposits a fine layer of semi transparent coloured dye that makes clean surfaces appear to be dirty and old, or to have aged. Quick and easy to use. Soot Black ageing spray has a stronger, more powerful spray nozzle than our other ageing sprays. The spray deposits a semi opaque layer of black dye that creates a dirty, black old or aged look. The