: I have some old Z-Spar Flagship varnish that I used on my Pygmy Artic Tern
: which I finished in 2001. I bought a gallon and didn't use more than a
: quart so I put the remainder in glass quart jars with just a normal screw
: top lid on them. I just finished a Pygmy Osprey and wonder if I could use
: this varnish on it or if it had lost its UV protection over the years. I
: could thin it to make it easier to roll and brush on but wonder if its any
: good after 7+ years.

: Charles Robinson

As long as it's kept closed and in a temperature controlled space it should last nearly forever. I'd filter it with a regular paint strainer first (cone shaped thing, get from paint stores).

Bill H.