Chromacryl Painting Medium / Varnish is the most versatile Chromacryl medium, giving good colour saturation, ideal for enriching and protecting finished artworks. Seals paper surfaces so that when acrylic paint is applied, the paint retains its richness. Rejuvenates colour when applied over dried acrylic paint. Used as a retouch varnish, this product revives dull or old paintings which need to be displayed or worked on further.