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Old 05-22-2007 | 01:38 AM
  #10  
Campgems
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From: Arroyo Grande, CA
Default RE: I hate CA Glue

I've got to agree with RCKen. Go with the tight bond or Elmer's carpenters glue. You can thin it a bit for better penetration and cleaner joints. One of the guys at the club was showing us the other day that you can used the thined glue and put just a bit on both sides of a joint, then wipe it off with your finger. Let what is left set for a few minuted to dry out. Then put a very small amount on one side of the joint and press the pieces together. Hold them for two or three minutes and you have a joint that you will have trouble pullling apart. Set overnight and it is 100%. You can work with the joint in just five minutes or less, It kicks off quickly when perpaired that way.

Like you I built my first plane in 30+ years last March. Had to try the CA. I've built three with it now and my last major repair was all titebond. I had to make a new wing and I built it like a laser cut. I used some salvaged wood shutter wood for my 1/4" sq and the 1/2x5/8 TE. I was worried about weight, but when I finished, it weighed less than the orginal ARF wing and it is a lot stronger. I read recently that the tight bond gives up a large precentage of its start weight when dry where CA keeps a vary high precentage of it's wet weight. I used about six oz of CA in the first plane, so I'm guessing that if I had used tight bond, I would have saved four oz or so. Maybe more.

I use a lot of epoxy building also, but only on things like firewalls, landing gear mounts, and wing hold downs. Oh yes, 5 minute thinned to dope thickness for sealing the engine and fuel tank compartments. The stuff is a bear to sand though. Watch the fast setting epoxys. The faster they set, the softer the joint. Having said that, I use Devcon 5 minute for almost everything that I use epoxy on. One exception is gluing hinges. It's not because of the strength, but it sets up to quickly to set more than about three hinges in a pannel. There, I use the Devcon 30 minute stuff.

I don't like gorilla glue. It holds like crazy, but the foaming sure can screw up the looks of a joint. I is also a bear to sand off.

OK back to the shop.

Don