is there a way to make an air tight seal between two sheets of aluminum without soldering, brazing, or welding?

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Aug 11, 2011. 12:21 AM

Burf says:

many varieties glue and caulking compound:
silicone caulk
latex caulk
epoxy glue
urethane glue
etc.

also rubber seals, O-rings and gaskets

164

Aug 11, 2011. 1:30 AM

Kiteman says:

Or simply fold the edges over together two or three times and hammer the folds flat.

Aug 11, 2011. 10:13 AMconnoboarder (author) says:

i wish i could select this as best answer

164

Aug 11, 2011. 12:38 PM

Kiteman says:

Hit "best" on Burf's post, and the whole thread counts.

Aug 25, 2011. 10:28 AMhhnewman says:

Nostalgic Guy's got it; context matters. If you're trying to keep your sandwich clean, that's one issue. If you're making a solar reflecting oven, that's another.

Aug 11, 2011. 3:43 AM

steveastrouk says:

Kiteman's method's great, especially if you have access to a metal folder - the joints are gas tight.

Soda can lids are assembled in a similar way. They don't leak either.

Aug 11, 2011. 1:37 AM

Nostalgic Guy says:

Both Burf & Kiteman a re quite right you could use any of the methods they suggest but it really depends on what you want to do with the joined sheets.
A little more information about what you are making would produce answers that would be far more helpful to you.