Pebeo Phosphorescent Gel is an acrylic medium that can be used directly from the tube to produce a glow in the dark effect or mixed with acrylic colours to make them fluorescentwhen mixed with acrylics, the colour is less fluorescent.These UV paints are opaque and can be painted onto surfaces such as wood, plaster, paper, cardboard, pre-painted acrylic surfaces, canvas and more. A 100ml tube of UV Paint will cover approximately 0.25 metres when applied in a thickness of 1.5mm. The thicker you apply the paint the more fluorescent it will be. These Pebeo Acrylic Mediums need to capture sunlight in order to glow at night (light is released in the dark). The gel will be touch dry in approximately four hours, completely dry in 24 hours. 100mlColourlessVegan friendlyCan be applied to wood, plastic, paper, cardboard, acrylic surfaces, canvas and moreApply thicker for greater fluorescenceTouch dry in four hours, completelydry in 24 hoursPebeo Colourless Phosphorescent Gel 100ml