No it wont eat it. Wont stick to it real good but wont eat it.
My question is based on your comments that the wood structural components are not glassed at all under the deck platform.
I would revisit that assembly.
In addition I would suggest to actually making stringers/bulkhead placed prior on the hull and then secure the platform.
Last note is that csm has no structural/strength value alone vs. adding glass
Ya know I was just thinking that if the 1"s are still a little green they gas off when trying to apply glass. Hence the bubbles.
Another trick is to glass just the sides and set up, grind down then glass the tops next.
Sap wood/dimensional lumber stays green along time that's all. I'm just making suggestions. Your boat do as you want.
I ran into the same problem once. Especially around any knots.
If you use an old saw blade to scrape some grooves into the PVC then wash it thoroughly with Acetone, the Poly will be able to GRIP onto it much better.
To make 1708 conform better to sharp edges you can pre-fold it and "Crease" it. Even then you'll need a LOT of finger work to press it into shaper and even then it's a crap shoot. 2-3 layers of Hairy CSM will do the job on the 1x1 cleats. All that's needed for them is to be sealed from the water. Not much strength required.
The Paint Info is in my signature line below.
Lots of good advice...…….for proper install. What kinda planes do you fly? As a job or hobby?
I took flight lessons all the way to soloing and had to stop. I didn’t have much more to do before my check ride, but ran out of time. My daughters kind of trumped my need for a private pilot license. Some day I’ll start again, but with this boat obsession, who knows, lol. I absolutely loved flying. It was one of the most difficult, mentally, but most rewarding experiences.