C Roberson Shellac Varnish is a fast-drying varnish for use in gilding. This cellulose-based product has a number of uses: it protects gold & metal leaf, can be used as a glaze when tinted with dry pigment, & also seals your surface before sizing for the application of leaf. C Roberson Shellac Varnish is touch-dry in around 15 minutes. It is not suitable for outdoor use. UK shipping by road only. Not available for International or Northern Ireland delivery.