WEST System #207 hardener is said to be somewhat more UV tolerant than their
mainstream products, but still needs protection from long-term UV exposure.
If a clear finish is wanted, I'd use a two-part clear polyurethane. It'll
be appreciably more hardy than a conventional varnish.

"Brian D" wrote in message
...
System Three does sell an epoxy that's designed to be a finish coat, one
with the UV inhibitors built in. It's called SB-112 and was designed for
coating and glassing surfboards. I used it (mixed with graphite) for the
bottom of my boat, see http://www.reelboats.com .

Brian D


"Matt Langenfeld" wrote in message
ink.net...
There is no additive that will give epoxy complete UV protection without
paint or varnish over the top of it.

Don't forget, a brief case does not sit out in the sun and epoxy does
not
instantly break down from UV rays. So that brief case will probably see
many many years without any sort of visable effect from UV rays.

--
Matt Langenfeld
JEM Watercraft
http://www.jemwatercraft.com/

Bob La Londe wrote:
I ran into a fellow at a guns how in Vegas a couple years ago. He had
soemthing interesting. An epoxy and carbon fiber brief case they made
made
in their shop. I asked him about his choice of epoxy instead of
polyester,
and he said that the epoxy had a problem with sunlight, but they were
able
to make a much more durable product with epoxy from every other
perspective.
I asked him abotu the UV issue, and he claimed they used a UV blocker
additive int eh epoxy that should totally eliminate the problem. Any
idea
what that might have been? It looked like clear epoxy over carbon
fiber
fabric.

Bob La Londe
www.YumaBassMan.com