After working on a part that doesn't show over the last few months. The tacky feel is like a very thin film on the finish. Sands off and cleans up easily. After waiting a month or so it is still hard. Takes spar varnish fine.
Go to Jamestown Distributors website. I found a lot of info on products there. I am re-finishing parts on my Huckster and am using Total Boat Gleam marine spar varnish. So far so good.