Dirty Down: Grey 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. Grey ageing spray is a fine mist semi transparent spray dye that makes things look dirty and old, or aged. Dirty faint light grey colour. A much lighter shade than Black. The spray is water soluble and