Opaque Water based Poster paint, ideal for posters, menu boards and sign writing. Highly opaque pigment ink with superior water and fade resistant performance suitable for use on card, metal, plastic, glass, wood, rubber, stone, etc. Allows overpainting without bleed-through. Easily washes off non-porous surfaces. Acid free. Writing width: 20 mm. Ideal for headings, underlining and letter shadowing.