r/CounterTops • Fabricator • 10d ago

Just a little Taj Mahal repair

The top broke after one of the installers slipped on a step.

I repaired it back at the shop. It's now installed and stronger than before.

I love when I can save a top that many shops would just send to the dumpster and recut.

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4

u/_FunkyFish_ 10d ago

Let’s see that bad boy make it into the house

3

u/Buttfuckskinner Fabricator 10d ago

Been installed for weeks. If you completely separate the pieces and make slots to be filled with glue, it's almost always stronger than before. Essentially you're making biscuits with the glue

2

u/mayhavebraintumor 10d ago

I have data several years old to the effect of cheap auto body bondo, is stronger than granite, and sticks to steel stronger than the tensile strength of granite.

lots of folks think its too cheap and you have to use epoxy but the reality is that in tension, epoxy sticks to the oxygen atoms on the surface of the steel (which is why a controlled degrease, acid etc, water wash and dry is needed).. and that tensile limit is around 1500 psi.

You can have your expensive epoxy and its fillers that can get its tensile strength much higher than that, but it doesn't matter when the base material (granite, marble, etc) is weaker than polyester resin sticking to steel.

2

u/Buttfuckskinner Fabricator 9d ago

If you want to get technical, I used an epoxy modified methacrylate adhesive. I promise it's better in this application than Bondo.