I just have one last task to do before I throw the front top skin back on and and start fitting the canopy bubble - attaching the NACA scoops to the fuselage skin. These will be connected to the air vents with scat tubing. There really isn't much in the instructions about how to deal with these. Some people rivet them, some rivet and use proseal, some proseal only, etc. I have a bunch of extra proseal in the freezer, so I'm going to go that route. Even thought it's a sealant and not technically an adhesive, it will still work just fine as an adhesive for something light duty like these scoops.
I scuffed up the flange of the scoop, put a thin layer of proseal on and stuck it to the skin.
I mixed up way too much proseal, so the hunt was on for where I could use some of it up. One place that will leak on the tip up is where the seal support angle attaches to the subpanel. I taped off the area and ran a bead of proseal in the gap. There are still big gaps between the tabs of the forward flange of the subpanel, but I can't fill those in until the front skin goes on for good. Once it's on, I'll have to crawl underneath and push proseal up from underneath to seal it.
The gap in the seal support angle where the canopy frame hinges go through is going to need some additional work to get rid of a leak path. It's a spot that people complain about water ingress in rain. I need to fabricate something that spans the gap and also bumps up over the plastic and under the front skin. I'll have to play with it a bit to see what works best. I can either make a single piece of a stepped aluminum sheet and rivet it in, or I could rivet a new piece of seal support in to span the gap, then attach a layer of fiberglass forward of that to cover the gaps between the plastic blocks. I'm not sure this will be enough to solve the tipup leak issue, but it'll help. I have a few other ideas for how to really fix the problem. I just need to noodle on it a bit.
I still had proseal left! What to fix, what to fix.....Needless to say, that leaky handle on my 5 gallon gas can is now sealed up tight.
