> I'm building a twelve foot strip planked racing dinghy and I've started
> glassing the outside of the hull after applying a sealing coat of epoxy.
> I'm using six ounce cloth laid across the boat from gunwale to gunwale. So
> far I have wet out two of the five strips of cloth that are needed to
> cover the whole boat. Time limitations have prevented me from wetting out
> all the cloth in one go! However, I have noticed that on the two strips
> that I have wet out already there are frosty patches which suggests that
> these are areas where I have forces insufficient resin into the cloth. The
> cloth in these patches does however appear to have bonded to the wood in
> these areas. Is it possible to cure this problem? I was hoping to leave
> the outside of the hull in a natural state rather than paint it and the
> whitish areas will I think reduce the appearance of the boat.

I had a similar problem with frost in a pattern of circular repeating patches .It seemed to be due to something that got on the roll of glass,and made it unwettable by the resin. I scrapped the roll.