No offense to anyone but I was skeptical of the whole glue thing from the beginning. It’s an interesting idea and seems like it could work. I’m no engineer or machinist but wonder if some other kind of chemical bond would be better if there is such a thing. Kinda thought that’s what was said about these sticks in the beginning or maybe that was kind of fancy word smithing. Again no offense to anyone on that one either. Every company has to market.
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Most structural adhesive are designed to fail below a certain load/force. For instance, in the auto industry, the high performance structural adhesives (HPA) used to bond parts of metal together are designed to fail before too much crash force is transferred to the passengers of the vehicle, effectively dissipating the forces and allowing the body to crumple.
So, knowing what I know about epoxies, mastics, and the like, it was unlikely a chemical weld was going to be successfully applied to this type of design. Sure, the forces necessary to break a chemical weld are significant, but the type of force applied to the structure need to be tested. A lap shear test tells a very different story when contrasted to a t-peel test, or a 180 degree peel test. Then, there is the real life application. I’ve learned in R&D that the most well designed material in a lab setting can fall apart when it comes to the intended application.