I´m building a twinfin board with a 2lbs EPS blank.
Finboxes will be FCS II and I´ll use some big self foiled fins similar to Asher Pacey 5.79 twins.
I´ve routed some reinforcement inserts out of HD-PU (apr. 6lbs/cuft sensity) that will leave a frame of apr. 1/2inch around the plugs (+a bottom under the plug).
The inserts will protrude into the channel a bit.
Most people seem to use epoxy to glue the inserts into place.
But that will make sanding/reshaping the channel cumbersome.
I have a high strength PU glue (like titebond/gorilla glue and such), which I use for glueing stringered EPS blanks.
This glue sands quite good. I think this would be a good option for glueing the HD inserts into the blank.
Any concerns about the glue not beeing strong enough ?
(my EPS gluelines are stronger than the EPS itself, testpieces always broke in the eps beads and not in glueline)
Forums:
