Sure Rend - out of date - thoughts

[Carrerahill]

I had bags of Sure Rend in the back of a car in my dry garage over winter, I moved them the other day and the usual puff of fine dust ensued, the stuff feels nice and powdery, however, the stuff went out of date in October last. Drat. 

 

I was hoping to do a bit of dry dashing to the back of the garage hopefully over the next few weeks - the scaffolding is up and and weather is better.

 

I know cement has a use by date, but my understanding was that if it was still dry it was fine and have often used out of date cement, I might not build a bridge with it, but I have never had an issue, one of the reasons cited was that a product in it to reduce cement burns wouldn't be effective - I ignored this and accepted the risk.

 

So what are your thoughts on a lime based product that is out of date being used? Before you ask, I have asked the manufacturer but not heard back yet.

 

http://www.enewall.co.uk/surerend-top-coat-pre-mix/

[Mr Punter]

You could mix a small amount and try it as a test.  I think it should be fine.  Some cold weather due so make sure it is over 4 degrees and rising when you apply it.

[Oz07]

I've read cement only has a use by date for the properties of safety and cement burns...could of been fake news

[jfb]

I've used hydraulic lime bags that are well out of date and they have been fine. Never had much success with out of date bags of multi finish! Goes off much too quick.

[Carrerahill]

On 20/03/2020 at 17:09, Oz07 said:

I've read cement only has a use by date for the properties of safety and cement burns...could of been fake news

This is what I have heard, there is something in it to reduce risk of skin burns.

 

I have used it out of date for decades.

[Carrerahill]

On 20/03/2020 at 13:13, Mr Punter said:

You could mix a small amount and try it as a test.  I think it should be fine.  Some cold weather due so make sure it is over 4 degrees and rising when you apply it.

You know something, that is a bloody clever idea!

 

Drat! 

 

I'd hate to mix it all up and find it goes off in 10minutes!

 

 

[Carrerahill]

I meant to add, I used this and it is still stuck to the wall, didn't go off quicker than usual and followed the usual sort of drying pattern - 2-3 days it's dry but "soft" then hardens up after about a week.