Adding Textile Medium to the colours reduces viscosity and renders colours more transparent. Layering colours is not recommended, because overloading the fabric may interfere with proper bonding to fabric. Brushes and other tools are cleaned with water and soap. Dried paint can be removed with alcohol. Stains of Textile Colour are difficult to remove if not washed immediately before drying; the colour is formulated for permanence even without ironing. Textile colour is not hazardous to users' health or to the environment.