Tile adhesive still ok?

Is premixed waterproof tile adhesive in a sealed tub still ok if it's still unset? It's many years old.
NT
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On Sunday, 12 May 2019 16:43:36 UTC+1, snipped-for-privacy@gmail.com wrote:

Probably not after "many years".
Owain
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On Sunday, 12 May 2019 17:53:42 UTC+1, snipped-for-privacy@gowanhill.com wrote:

I'd better test it methinks.
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On 13/05/2019 00:21, snipped-for-privacy@gmail.com wrote:

You can't. Throw it away.
Bill
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On Mon, 13 May 2019 05:40:11 +0100, Bill Wright wrote:

You can take a sample squidge it onto the wall intended for the tiles and see what happens.
Does it set in about the right amount of time? When set is it stuck to the wall? When set is it a hard solid layer?
If the answer to all those is "yes" the chances are it's fine.
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Dave.
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Really depends on how airtight it was and what its made of. Brian
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