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Brian Enos's Forums... Maku mozo!

shelf life of N350


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Powder stored correctly will last indefinitely. Service Desk's experience with rusty cans indicates his was not stored in good conditions. Gladly, most modern powder containers are of an inert plastic variety which should be proof against the rust thing! Still, never put powder containers for any continuous length of time directly on a concrete floor or other place where moisture or corrosive influences might be prevelent.

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Never had any problem with concrete floors or garage storage.

Powder is very stable. The good news is if it goes bad, you are in no doubt about it. Brown nitric acid gas and brown powder eliminates any doubts. Rusty can indicates can failure or powder failure and you can tell instantly by smell.

I consider any powder made since 1970 to be GTG, if stored at least somewhat correctly.

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