Due to its blendability, washability 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 them with a fantastix or fine paint brushes on fabric, 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.