come on people... epoxy resin alone has no strength. if using it with glass or carbon of some sort then yes. J-B weld is an epoxy-based "panel bond". and to help prove its tha shiz.... cracked the engine block in my jeep about 20 inches long 3 years ago. cleaned it, scuffed it, J-B welded it.... still good to this day. try that with some resin.
i know it may sound a little off the wall, but i've been doing custom paint/body work for over 20 years and you will be suprised at what you can do with this stuff. and yes, there are other "panel-bond" adhesives that i would also suggest but at @ $40-50 a tube and the price of the "special gun" it takes to use it this is a great/cheap alt. IT WILL WORK!!!