you could fill the gaps with splinters and glue..sand that smooth as you want..
then fill the gaps with durhams water putty then seal coat with epoxy...the putty will absorb the epoxy..plus i think the putty is thick enough to block light from shining through the cracks.

: I am building a Guillemot 17, and have completed stripping the hull with
: 1/4" x 5/8" western red cedar. I enjoyed using my block planes
: so much that I over-beveled many of the hull strips. From the outside, the
: hull looks good. Inside the hull, gaps of 1/32" or greater exist,
: especially on the tight radius of the chine.

: I would like to fill the entire hull interior with a good bonding filler,
: such as epoxy and wood flour (dookie schmutz) to re-gain the wood's
: structural integrity. I am not overly concerned about the interior
: aesthetics.

: I am building the Guillemot for use on rivers up to class II, so I am very
: interested in a strong hull. Perhaps I will use kevlar in the hull
: interior for the occasional rock impact.

: I would appreciate any advice regarding fillers and techniques.

: Thanks
: Chris