Designed as tinting agents for use with 1 Shot Lettering Enamels and Chromatic Bulletin Colours. 4001 Tinting Black produces various shades of grey without streaking when added to 101L, 103L, 4010101 and 4010101SW. 4001 Tinting Black can also be used to darken all 1 Shot Lettering Enamels and Chromatic Bulletin without “muddying” the colours.