Ok, #FediHelp hive mind, if you had to #repair a broken plate with a glue that was dishwasher and food safe, what glue would you use? #BoostsWelcome

EDIT: DAP makes a ceramic glue that is dishwasher/microwave safe and nontoxic. I think I'm probably going to try that first. Thanks to everyone who had suggestions! And thanks to @westerling for the tip!

@intransitivelie

Two part epoxy? Shit'll hold just about anything to anything, through anything...
I'm not sure about food-safety, though.

@helplessduck
I thought about this, and yeah, I'm not sure it's food safe either. I should look it up.

@intransitivelie @helplessduck I looked into this once to repair a beloved teacup. What I found is that there's not really a good answer for ceramics, since even if you put it back together, stuff is liable to grow in the exposed porous surfaces, no matter how well you seal it. If that doesn't dissuade you, I remember cyanoacrylate being among the safer options for glues-- you'll want to find one of the gel options rather than the liquid, or else it'll just seep into the ceramic.

addendum: acrylic cement (e.g. Duco cement) is another potentially good choice. In my experience this stuff bonds to ceramics really well. Since it's acrylic, it should be food safe once it cures?

@gardencourt @intransitivelie @helplessduck
Pretty sure just about any ceramic dishware will be fully vitrified, meaning that the clay itself (not just the glaze) is fully waterproof and non-porous. There might still be concern over the rough surface being able to harbor bacteria, but neither glue nor food will seep into the clay.
@inthehands @intransitivelie @helplessduck Huh-- that is very good to know for the future. When I tried liquid cyanoacrylate on my teacup it did seep in, though. It was a rather old one
@gardencourt @intransitivelie @helplessduck
Hmmm, it’s possible that some manufacturers use a non-vitreous process. It’s possible there were hairline cracks or seeped through. And it’s possible I’m just straight-up wrong about vitreous clay not admitting glue!
@inthehands @intransitivelie @helplessduck I'm not too sure either way. I'm content to let my little teacup remain a mystery: above all else, it hasn't gotten me sick yet!

@gardencourt @inthehands @intransitivelie

You'd think I would have some kind of basic knowledge about how this works since I spent all that time in a pottery studio in college... HA! I do remember that tiny pockets of water or subtle imperfections in the clay can cause all manner of problems. I had a few things explode in the kiln because of water. This is likely the problem with my coil sculpture: I used cheap clay.
Regardless, I think not getting sick is as good a testimonial as any! 😊