Global Colours Professional Fabric Medium is a water-based acrylic medium used to convert acrylic paint into fabric paints that will become permanent when dried and heat-set. It is flexible, washable and dry-cleanable once heat set. To use mix equal parts Fabric Medium with Global Colours Acrylics. May be thinned with 10% water. Test on small area to determine fabric suitability – avoid synthetic fibres. Allow to dry 12 hours depending on weather conditions before heat setting with an iron. Heat set by ironing: do not iron the painted area directly: cover the fabric with a cloth and iron on medium setting. Time to set may vary, from 5 to 10 minutes, depending on the fabric. Clean equipment with soap and water. Use at greater than 12°C ambient temperature. Global Colours Acrylic Paints, Mediums, and Gesso Primers have been handmade in our Marrickville factory in Sydney, Australia since 1992.