I guess many of us have half bags of cement left over from the last job and having arrived again at that situation which begs the question...

if you open a bag and re-seal it properly eg with duct tape on , the same day so that it is not directly exposed to the air, does it last any longer?

"JimG" wrote in message
...
I guess many of us have half bags of cement left over from the last job and
having arrived again at that situation which begs the question...

if you open a bag and re-seal it properly eg with duct tape on , the same
day so that it is not directly exposed to the air, does it last any
longer?

The best hing to do is put the part bag in a bin bag and seal with good
quality tape or tie up the end with string.
Squeeze as much of the air out as possible
It will store for months.

Left open it will go off in a fortnight or less, especially this humid
weather.

On 23/07/13 16:40, JimG wrote:
I guess many of us have half bags of cement left over from the last job and having arrived again at that situation which begs the question...

if you open a bag and re-seal it properly eg with duct tape on , the same day so that it is not directly exposed to the air, does it last any longer?
a bit


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On Tue, 23 Jul 2013 18:04:54 +0100, harryagain wrote:

The best hing to do is put the part bag in a bin bag and seal with good
quality tape or tie up the end with string.

Only open the cement bag enough to get what you want out, say a 4x4"
flap so you can get cup size measure in. Put the whole bag in a bin
bag and twist once and fold under the rest of the bag the open end,
excluding as much air as possible. It'll keep for a long time but be
aware that it might not be quite as good as fresh a year later...
Keeping the damp out is what you need to do.

--
Cheers
Dave.

JimG wrote:
I guess many of us have half bags of cement left over from the last job and having arrived again

at that situation which begs the question...

if you open a bag and re-seal it properly eg with duct tape on , the

same day so that it is not directly exposed to the air, does it last any
longer?

Not worth the risk. Always throw it away.

Bill

On 23/07/2013 16:40, JimG wrote:
I guess many of us have half bags of cement left over from the last job and having arrived again at that situation which begs the question...

if you open a bag and re-seal it properly eg with duct tape on , the same day so that it is not directly exposed to the air, does it last any longer?


Places such as Wickes sell cement in thick plastic bags. In my
experience sealing these bags as you suggest enables the cement to be
used long afterwards. It's probably more important to keep the moisture
out and to get a bag without splits in the first place.

Having said this, if it was an "important" job I would buy fresh.


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in 1242775 20130723 164026 JimG wrote:
I guess many of us have half bags of cement left over from the last job and having arrived again at
that situation which begs the question...

In what way does it "beg the question"?

http://begthequestion.info/