: I'm
: looking for a good UV protected water base urethane varnish to use on the
: boats. If my floor varnish had UV protection I'd use it...but it doesn't.

This floor sealant is water based and has UV protection:
http://www.flecto.com/product.asp?frm_product_id=66&SBL=1
Don't know if it would work on epoxy, but many SOF builders are using it on nylon or polyester.

But more builders are now using System Three LPU with a cross-link for the last coat. Here's more info on it:
http://www.systemthree.com/index.html
You will have to scroll down a bit. I've tried this and have not had great success, but will keep trying.

You probably already know about these products, but just in case.

What we really need is UV protection built in to our epoxy, but I guess that would make too much sense. Maybe someday soon.
Smf