> Wooden Boat had an in-depth article about varnish a few years
> back. Without getting technical, the UV absorbing properties get used
> up after a while. This is why you re-coat.

> People put on mutiple coats in the beginning to sand between
> coats to level the surface to get a good looking finish with depth.
> A six year old boat with 5 coats of varnish put on the first year
> does not have much UV protection compared to the guy who puts a fresh
> coat on each year. (if I remember the article correctly)

Eventually, one would have to remove that _thick_ layer of varnish, no? This may be a stupid question, but, what _exactly_ is varnish for? Is it just UV protection, or also a buffer layer for abrasion of the epoxy finish?

Mike Spence