HOLBEIN Artist Acrylic Ink Opaque Medium 100ml
HOLBEIN AI990This Opaque Medium can be used alone or thinned with water to make transparent acrylic ink colors more opaque. The resulting mixture will have less of a transparent/sheen finish and more of an opaque/matte finish. Use a ratio 1:1 to start and adjust accordingly if desired. Conforms to ASTM-D4236.