by KCStudly » Tue Aug 16, 2022 1:44 pm
I have not been too "thrilled" with the holding power of 30NF when laminating thin ply directly to foam. Sure, it will hold two panels together just fine, but when I destructively tested a cutout, or had to cut away some foam for some blocking the ply joints just seemed to pop right apart, quite easily in fact. I think it wants high pressure, such as from a roller... IIRC, something like 100-200 psi, per the instructions... in order to bond well. The foam is generally only good to 25 psi. I did the typical gravity weight thing on some panels, vacuum bag on others, and hand pressed in a third area; none of which gave 100/ct bond. Am I going to go back, tear my camper apart and start over? No, for my usage I'm okay with the sum of the strength developed. But then again I didn't use it in my hatch, and used perimeter frames with wood glue everywhere that I did us it. Just saying, a light weight perimeter frame of select cedar or poplar would add points to attach hinges and latches. If I were ever to do it again I would follow the advice of one of the great ones, Doug Hodder (RIP) and use a loose slurry of thickened epoxy.
KC
My Build:
The Poet Creek Express Hybrid Foamie
Poet Creek Or Bust
Engineering the TLAR way - "That Looks About Right"
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