Additional Coloured Dye for Coloured anodising dye Kits. 1 litre, dilute for 5 litres. Colours Available: Black/ Blue / Green / Red / violet / Yellow After the Dye has been stood for some time, a sediment/growth may occur. If this happens the dye should be boiled for 10 minutes & filtered/decanted to remove this before use. NOTE: Colour patches are for guidance only. Exact colours are difficult to show, due to each monitors display settings.