Akua Intaglio soy-based permanent inks are a non-toxic, environmentally safe way to do printmaking. Formatted for intaglio, they can also be applied with a brayer for relief, monotype, and collagraph printmaking techniques. Combine Akua Intaglio Ink with Solarplate for a completely waterbased intaglio process. Akua ink has a rich, thick consistency with minimal dryer and cleans up easily with soap and water. Print from plastic, wood, linoleum, or metal plates. You don’t need any special ventilation, toxic solvents, or fireproof containers.