Are you referring to where I added a nifty red arrow to your dandy photo? If so, there is a product just made for this. The name of the company is "Belzona". They make a product you mix similar to epoxy, then once it has cured, you machine it and drill and tap it just like metal. They have another product now for rubber too. Both are intended for the paper mill industry. A common use for it there is to repair the ground-up surface where a bearing rides on a large roller. It could take weeks of downtime to order a new roller from overseas, but in an hour or two, the surface can be coated with the metal product, then machined on a lathe and be back in service the same day.
Their rubber material is used to make mounts such as engine and transmission mounts on cars. You stick a large bolt head into a cup of the product, then pull it out when cured and you have a new mount.
There's also epoxy and "JB Weld" which is like epoxy, but I don't know if those can be machined like metal. If you have either of those, I would try to glue the old piece back on, coat the screw lightly with oil or light grease, then run the bolt in part way. Once cured, run the bolt back out, then assemble the parts. Having the bolt in place will prevent the epoxy from filling the screw hole, and the grease will prevent it from gluing the bolt in place. If no other parts will interfere, build the glue up around the repair for extra strength. This is a place where super strength is not needed. The main goal is that parts don't rattle and are held in proper positions.
If something slides over or next to the broken tab, install that part while the glue cures. Put a piece of masking tape, or paper, on the part to prevent gluing the part on permanently. The part will form the mating surface in the glue. Once cured, pull the masking tape off, then reassemble the puzzle.
Oct 5, 2026 at 6:11 PM
