Due to its blend-ability, wash-ability and versatility, this quick-drying craft ink has become a favourite among fabric artists. And because it's water-based and non-toxic, All-Purpose Ink is fun for artists of all ages. Use it on wood, paper, leather and other porous surfaces too. All-Purpose Ink must be heat set on fabric for permanence. Heat set between colour applications to prevent bleeding. Or layer colours to achieve a blended "watercolour" effect. Find all these inks here: http://www.thewholesaler.biz/All-Purpose-Ink