Fustic – Fustic (Chlorophora tinctoria) is a tall tropical hardwood that grows from Mexico to Argentina. Fustic is high in tannic acid, which makes it an ideal cotton dye; in fact, it was used in the military to dye the color khaki during World War I. On cotton, it will dye a clear gold and on silk and wool it will dye gold to brown-gold. Fustic also provides a good base for other colors: overdyed with indigo for green; combined with madder and cochineal to make oranges; and mixed with logwood or with iron to produce olive greens. Our fustic extract is in liquid form and is very strong. Use at 10% for bright to rich gold. Lower percentages will produce a lemony shade. The high tannin content of this dye will result in a slight color shift toward a golden buff when exposed to direct sunlight.
- 50 grams of Fustic extract will dye approximately 300 grams of fiber (10.5 ounces) a medium gold shade.