I haven't followed every post in this thread but Lee Valley Tools sells the 'Finish Preserve', which is an Argon spray. http://www.leevalley.com/wood/page.aspx?c=1&p=30268&cat=1,190,44133 No commercial interests but I've been a very happy workshop-boat-garden customer of Lee Valley for 20-years. Another tip is to transfer fresh paint-varnish to a working container, which is then thrown away after use. Ed Bottrell Glen Haven, Nova Scotia