Cobra Varnish is produced for use with Cobra Artist Watermixable Oil. It can also be used over conventional oil colour and acrylic. Unlike other varnishes it is odourless. The main benefit to using a varnish is that it gives a final permanent protection. This varnish dries within a few hours and is to be used once an oil painting is completely dry (after a period of at least 6 months). Available in 400ml aerosol, in either Matt, Satin or Gloss finishes. UK Delivery Only A Quick Guide to Varnishing Paintings  UK shipping by road only. Not available for International or Northern Ireland delivery.