I think it's a mistake to glass the bulkhead to the hull. it might be better to just hold it to the hull with small amount of thickened epoxy, so if the stress will rise, the bulkhead will break from the hull, but none of the two (hull & bulkhead) will break.

erez

> Dale Frolander:
> http://frolander.homepage.com/Kayak/Building/Ideas/Ideas.htm#Bulkhead
> Closed cell foam ("ethafoam") is more difficult to glue than
> minicell. Uncut, it is very slick, and should be roughed up with sandpaper
> and cleaned with lacquer thinner? (try on a scrap first to make sure it
> doesn't 'eat' the foam). Cut pieces of ethafoam have largish cells that
> gobble up glue. You just have to use a lot of glue here.

> Minicell glues very well with DAP Contact Cement.

> Personally, I think I'm going to glass the bulkheads directly to the
> inside of the boat, but I plan to add 1 or 2 additional layers of
> fiberglass to make thin 'ribs' that should spread out the stress and
> hopefully prevent stress risers.