Pebeo Vitrail Cerne Relief Outliners - Black - 20 ML Tube - are the perfect companion to be used with Pebeo Vitrail colours. They are solvent based, dense, opaque, intensely luminous and very bright / high gloss colours and have good lightfastness. Vitrail colours can be mixed together. Use Pebeo Vitrail colours with Vitrail Cerne Relief outliners to create beautiful Stained Glass Effects on all carefully degreased transparent surfaces such as glass, acetate, polyester and Plexiglas.