Yacht Varnish is designed to be used for external applications where it has to cope with UV light and the flexing of timber as it moves during the seasons. Therefore Yacht varnish contains UV inhibitors to prevent yellowing and remains slightly soft and flexible to cope with the expansion and contracting of timber during the seasons thereby preventing cracking, peeling or blistering. The Floor varnish is designed for internal use so is harder and more wear resistant than the Yacht Varnish.Yacht varnish is not suitable for high wear floor areas.