Bruce wrote:
"Mr Sandman" wrote:

My local builder merch. says they are fine for 6 months after use by
date...as long as it has not hardened into lumps!


Ask him to back that up with a warranty.

OK, lets state the obvious:
1. The best before date is the date the warranty that the product is
fit for purpose expires.
2. Beyond that point you have no warranty, no comeback
3. Fitness for purpose depends on storage conditions
4. No supplier is going to warrant any product for longer unless
youre willing to pay for them taking on that risk.

The reality is cement stores years _if_ stored in good conditions,
and if you dont mind 3:1 giving you the result of a less hard mix.


NT