Quote Originally Posted by Slab View Post
Additional fiberglass, and using epoxy resin (instead of a polyester resin), maybe could do the same, no?
I only use epoxy for hull stringer & transom work but no, epoxy has a 3000 psi adhesion to Polyester's 300 psi, epoxy will take more twisting and abuse, but the lamination design, lay up practices (bagging is best), of course adding Carbon fiber stiffens, but a well foamed in stringer system has no replacement. Several of the better built boats today have a fiberglass waffle stringer system (no lamination over a core like wood or Coosa) that is hollow with a 2# foam injected internally in the stringer system voids. We all Hate Foam, I do too, really hate digging the wet stuff out, just not sound Marine Engineering to skip it IMO. Please don't shoot the messenger.