Re: COZY: Final thoughts from the Peel Ply side of the force
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I'm taking the risk of attracting the wrath of many people here.
I built my whole airplane without using a single square inch of PP. I did wet layups pouring the epoxy on and spreading it around fast (High heat and humidity) with plastic squeegee. Than laying over the whole thing sheet of 4 mil plastic from Home Depot. Stretch it lightly by hand and than with larger squeegee start chasing the extra epoxy and air bubbles from the center out. Once you squeeze air and epoxy out, it can not get back in. If I see dry spot, just drive some epoxy to this spot. Amazing how much stuff comes out. After a while of working out all unnecessary epoxy and bubbles, the layup starts looking transparent. Left it to cure with plastic on. One big benefit for us here in hot and humid FL is that the layups were cured in absence of air (no amine blush). Did the spar caps like that, and they looked like solid glass with no air bubbles. We did all that with Todd Silver in his backyard cabana / building shop :).
Later I had to sand off the shine with 80 gritt, and 40 gritt for bonding areas. But you have to sand anyway even using PP.
My CZ is 5" wider, 2" taller inside and the fuselage is 1/2" Lastafoam. With Electric NG, wheel pants, upholstery, two batteries, all up it came at 1193 pounds. We did the W&B in 2005 with Steve Wright.
Again: that's what I did. Does not mean you should do it. Just sharing my experiences.
Happy Federal Holidays to All! :)
Bulent "Buly" Aliev
CZ MK-IV N484BD
X50 Edgewater, FL
On Wed, Dec 23, 2015 at 9:58 AM, Michael Garmon <michaelagarmon@...> wrote: