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Definitely a big difference!

The Liquid Nails claims a shear strength of 275 PSI to wood, and says it won't burn foam.... https://buyat.ppg.com/rep_pafpainttools_files/Liquid%20Nails%20US/FRP-310_Data_Sheet.pdf But, there is no data on shear strength with foam, or what mechanism it works. Given that it says dry air can...

That's what I figured. Problems with epoxy are delams, more difficult to construct, and a lot of VOC's for quite a while. So, there are definitely trade-offs for the shear strength. For a smaller, box-drop style build, I'm curious if people have just skinned with the FRP panel, built a skeleton...

Apologies if this has already been addressed, but is there a reason people are using epoxy and not FRP adhesive like Liquid Nails for the panel creation? Is it to create extra rigidity? Curious if you need that rigidity if you build and exo-skeleton?