On Mon, 04 Dec 2006 19:56:43 -0500, Matt O'Toole
wrote:

My varnish would probably last almost forever in Maine but down here in
south Florida the sun is brutal. Perhaps PS did their testing in the
tropics also.

Do they live with it and maintain it for a couple of years, or just report
on how it goes on and looks immediately afterward?

They apply the coatings to test panels and put them outdoors for a
year, similar to what a boat would experience.