FDA Epoxy, Medical Grade Adhesive, Medium Viscosity, AA-BOND FDA26, 2.5gm kit

Only the directions and calling customer support for assurance was great. Old glass-topped egg cooker glass repaired. No concern about coming apart at high heat. No toxic fumes. Best for this application. Highly recommend.

Used this epoxy to repair a large stainless steel restaurant hot water dispenser that holds water at ~80-85C after it took some mechanical damage in a fall. Chose the FDA26 because it seems to have higher temperature range than the other "FDA" ones.That it had high viscosity ( ~ honey) was also helpful for this particular bonding application.That said, in spite of that viscosity this is definitely going to flow and it takes hours to even start hardening. Depending on what you're doing, take seriously the suggestion that you need to keep it in place with masking tape to keep it from flowing out.- These single use packets also are pretty neat and a low mess way to mix the epoxy well and then squeeze it out.- Some leftover cured epoxy from one of the packets, when put in ~210F water really gets considerably more flexible than at room temperature, and softer (i could push my nail into it if i pressed hard). I was a bit surprised since this wasn't THAT close to Its "glass temperature" (listed as 235F), but i don't know enough about materials to say how it compares to other epoxies or whether it'll affect the bond or what.It's only been 24 hours since the heater has been back in service, but so far so good.Why am i taking away stars? Atom Adhesives didn't answer my support requests. They make a big deal on their site (and also in earlier comments here on amazon on some of their product) about how one should contact them about one's application (even for small orders). First i filled in a form on their site asking which of their 5 or 6 FDA compliant adhesives they'd recommend for my case (which generated an auto-response saying someone will get back to me). A few days later i sent an email along the same lines. ~1.5 weeks later there still still haven't been a response to either beyond that auto-response.They have some data sheets on their site which are moderately useful, but i don't know all of the relevant factors (or which ones to weigh more heavily. e.g. for my use should i care more about "water absorption" (which isn't even listed for FDA-26) or about glass transition temp?)It would have been helpful to have someone who knows adhesives opine on this.Seeing as there aren't many retail options for small amounts of FDA compliant epoxy maybe i shouldn't complain... but i amUPDATE: The item's been back in service for ~3 weeks now and all is well. However, i played with that leftover piece of epoxy some more and noticed that after sitting in near boiling water (say 95C ) it is not just flexible but plastic. i.e. if i bend the piece and hold it bent while it cools... it stays bent. If i heat it up again it straightens.Applying high force to the straight piece of epoxy while closer to room temp (say 30C - 35C ) made it snap without bending. The point here is that the properties of the cured epoxy change a good deal even at temperatures WELL away from the stated glass transition temp. How wide that range is and how that affects bond strength and/or stability... i have no idea.

Easy to mix, stays where you put it, tight bond.