Polymer Satin Varnish is a water-based acrylic varnish containing matting agents to reduce sheen, resulting in a satin finish which is not too glossy but still has a lively look about it without being matt. Polymer Satin Varnish will help to bring out the intense, vibrant colours of the Matisse Professional Artist Acrylics range. Use as a final varnish over a dried, well-cured acrylic painting where a satin or semi-gloss sheen is required