I’ve been building kits with Titebond for many years without any issues with structural integrity. I like using wood glue because it slows things down a bit but still tacks up fast enough to not make building excruciatingly slow. I read on the bottle today that it’s not intended for structural or load bearing applications. I know this means in construction of homes or other large structures but it made me think about the areas of a model aircraft that are structural and the parts that bear airframe stress during flight. Has anyone ever had any issues with these glues failing under flight loads?

No! Here is an interesting article.

Thanks for posting Tony.

Interesting article. Certainly raised an eyebrow on what I was lead to believe about the polyurethane glues.
Not that I used much polyurethane on my airplanes, but I have used it on other wood projects.

I have been using Tite Bond III for years and love it. I build all my larger models with it and C.A. with my smaller ones.

I've never had Titebond fail me but I wouldn't use it to join wing halves or glue in a firewall. I use it for all kinds of things but there is one area you have to be careful with and that's laminations. It can warp structures when laminating. I built a stab for a small Sukhoi (sheeted stick frame) and when I glued the skin on, it warped like a dog's leg the next day. I started from scratch and built a new one with CA bonded skins and no problem.

carl

Thanks for the information. I enjoyed seeing the glue strength article, it contains some useful and surprising information. I’ve always used 30 minute epoxy for wing joiners and firewalls but according to the article, Titebond III is a bit stronger. Thanks for the responses and information, it is much appreciated.