Duasyn® Direct Turquoise Blue FRL by Heubach is a liquid blue colored phthalocyanine dye. Highly recommended for use in writing inks, polishes and fiber-tip pen inks. Duasyn® Direct Turquoise Blue FRL is suitable for ink-jet inks and drawing... view more

Duasyn® Direct Turquoise Blue FRL-SF liquid by Heubach is a turquoise blue colored, salt-free, water-soluble dye with high purity (no insoluble components) and high surface tension. Highly recommended for use in ink-jet inks... view more