Looks like interesting stuff, but yeah, it's a bit more expensive. Also I prefer being able to go over and pick up what I need instead of mail ordering. A local supplier has the Dow blue foam so I'll probably end up using that. The Owens pink foam would have required me to add color (graphite at least) to the epoxy since I'd rather not display whatever feminine side I have with my choice of hull color...

: Dave - have you considered using Divinycell foam instead of insulation? I
: know it costs more, but is intended for fiberglass boat construction, so
: should give a much better result.