[corkybstewart]

So I'm in the big city(Midland TX) for a couple of days and have access to Lowes and Home Depot.  Does anybody know of a brand of silicone sealant I can use on my future mash tun that I can find at one of these places, or some other place I can look?

[Hokerer]

There's probably a PetSmart or PetCo or whatever in the area.  The fish section should have aquarium sealant which should do the trick.

[Malticulous]

If it says kitchen on it it should be food grade.

[corkybstewart]

Will these handle the heat? 

[weazletoe]

There's probably a PetSmart or PetCo or whatever in the area.  The fish section should have aquarium sealant which should do the trick.

+1 If it won't kill a fish, it won't kill you. Fish are pretty much used in homebrews the same way canaries are used in mining. I'm pretty sure I read that in a Zymurgy a couple years ago. Maybe it was BYO.

[Hokerer]

Will these handle the heat? 

Yeah, no problem.  It's been the sealant on my Xtreme cooler mashtun for years.