Use Marsh T Ink with refillable Marsh 99 Markers, with a Fountain Brush, or standard spray gun. Available in pints or quarts. Dye type T ink is waterproof and fast drying. Standard colors: black, blue, red, green, and yellow. Pigmented T Ink is weatherproof, permanent, and opaque. It is recommended for use on dark surfaces or glass. Standard colors: black, red, white, blue, and yellow.