I can not think of any situations on a kayak where the additional strength of the 18 oz cloth would be worth the additional weight. Like you said, the glass weights alot, it will absorb a lot of resin and it would be ugly.

> If you could get some 18 oz cloth cheap, would you use it for kayak
> building?

> How much heavier would the kayak be than if you did use 6oz glass?

> Would you choose thinner okume plywood (say 3mm inplace of 4 mm) to
> compensate for the increased glass weigth in a stitch and glue? Would you
> use thinner strips in a strip built?

> Or would you refuse to use the 18 oz cloth because of it beeing to heavy,
> because of it drinking too much epoxy, because of it beeing more difficult
> to lay out over the kayak hull (if this is so, I do not know if it is
> so...)

> Jan Gunnar Moe