Dirty Down: 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. Black ageing spray is a fine mist semi transparent spray dye that makes things look dirty and old, or aged. Dirty black blue colour. Not as dark as our Soot Black ageing spray. The spray is water