Read the www.spadtothebone.com nfo on glueing coroplast. Use that info when gluing up the Aircore trainer.

My prefered method is to sand the surface to be glued rather than some people's preference to "Flash" the surface with a propane torch. (I tend to melt the coro if I use the torch.) The purpose is to remove something from the surface that interferes with the CA bonding to the coro.

CA is MUCH lighter than the contact cement the kit instructions say to use... and it actually bonds BETTER if used properly. You can save a bunch of weght, and thus have a better flying trainer.