Createx Airbrush Fluorescent Colors are water-based, full bodied fluid acrylics suitable to be used for a variety of projects. They use vibrant, transparent pigments and a durable resin which when applied to fabric feels soft to the touch and resists cracking. For maximum color brightness, apply over a white base, such as Createx 5212 Opaque White or AutoBorne Sealer 6001 White. As they are NOT lightfast, fluorescent pigments will eventually fade due to exposure to direct light.