On Sunday, 12 May 2019 17:53:42 UTC+1, wrote:
On Sunday, 12 May 2019 16:43:36 UTC+1, tabby wrote:

Is premixed waterproof tile adhesive in a sealed tub still ok if
it's still unset? It's many years old.

Probably not after "many years".

Owain

I'd better test it methinks.