Golden Acrylic Medium : GAC 900 236ml : for mixing with colour to create a heat-set fabric paint Designed to be used as a modifier for acrylic paints for painting on clothing. Offers a soft, pliable feel and when properly heat-set, provides excellent laundering stability. Blend with GOLDEN Heavy Body, Matte or Fluid Acrylics for brush or screen application. Mix with GOLDEN Airbrush Colors for "Tie-Dye" effects. Note: The heat-setting process will release low levels of formaldehyde; therefore it is imperative that adequate ventilation be provided.