Prima Varnish - Satin 500mlPrima Varnish Satin 500ml Varnish is available to purchase in both gloss and satin finish The varnishes have been designed to protect from canvas edge cracking and any other environmental pollutants. When in use the varnish is milky in colour but will dry to a 100% clear finish after roller application in less than 30 minutes. Specially formulated to increase the light fastness of all your digital canvas prints adding saturation, improving colour