Soluble Matt Varnish. Specially developed for the protection of acrylic works from environmental pollutants which can cause surface degradation. Sealing the surface with a matt varnish provides a barrier film which can be cleaned or removed, but leave the paint itself unblemished. This varnish is solvent-based and should be touch dry within an hour. However, as drying can depend on environmental conditions it is recommended to leave a full 24 hours for drying.