Originally Posted by
olnico
Thanks Roger.
Also the purpose of this comparative study is to educate newer modelers and demonstrate the difference betweeen types of glue. I have seen more than once people using CA on servo brackets. Even on Chinese ARF kits...
And frankly, while I can guess what silicon compound will do on the stress test, I am still extremely curious to see the result for real.
Correct selection and application is important, but glue joint strength is equally important. The bond will be only as strong as the weakest link, as always...
All good points Oli. Knowing adhesives comparative shear strength will be interesting. I hope and am fairly confident, that Hysol/Aeropoxy will be the outright winner.
Educating people on how to use adhesives correctly is a very good idea.. I just wish some the ARF manufacturers would take care in this area. It grinds my goat to see these mass produced ARFs with great lumps and globs of what is passed off for epoxy smeared all over the place.. And while I’m on my high horse regarding glues, It would be great to get a sample of the famous Chinese ARF “epoxy” for you to test!!
My favourite Epoxy (when I don’t wish to use Hysol) is the West System 105 Epoxy, with 403 microfiber glue filler. This recipe makes a slow cure, thixotropic glue which is immensely strong, and very economical when compared to Hysol. I don’t know it longevity potential, but West Systems Epoxy is a very reputable brand.
Roger