For some reason our LHS likes to stock Pacer Formula 560, an obvious rip-off on the RC 56. I didn't like the way it behaved on my last canopy attempt. I laid a bead on the interior mating surface of the canopy and stuck it on the fuselage, taped it down and waited for it to dry. It never dried, even after a few days it was still white and mobile. Plus it dripped where I didn't want it.

I ended up using PFM, but that stuff flows like warm tar, looked clumpy as heck when it dried.

I have used the Formula 560 for a few other applications--where the glue was fully exposed for air-drying, and it works pretty well in those circumstances. Nice and clear, settles down into a smoothly shrunk, flexible skin but good bonding to monocote and anything else.

For my next canopy I will figure out how to temporarily secure the edges all the way around and then lay in a bead of the Formula 560 without trying to work it in between the mating surfaces, and see how that goes.

I used to use a lot of PVA in my former life, and I swear that's what the Formula 560 is. Flows thick and white, dries fast and clear, has good hold but flexible and shock-resistant.

I also notice how when I goop some rtv silicone in the channel where my wire landing gear crosses under the fuselage, when I have to replace the gear the silicone pulls the monocote away from the wood. So now we know silicone sticks well to film. Maybe I'll try some silicone on the next canopy after the Formula 560 and the PVA.