tubular glue shelf life
Dan Nieves
number of years while still in the orignial container if a)the tube
has been opened and partially used and recapped and b)if the tube has
not been opened and is still sealed? For how long is the glue still
good in each of these 2 situations?
Thanks,
Dan
Snoopy
wrote:
>Does unused tubular glue like clement or vittoria go bad after a
>number of years while still in the orignial container if
>a)the tube has been opened and partially used and recapped
>
Yes, probably because there is no such thing as a 'perfect' cap seal.
>
>and b)if the tube has not been opened and is still sealed?
>
>
Funnily enough I had a tube of glue here that was 10 years old and had
never been opened. Your post prompted me to look at it. By accident
I broke the tube (not the top) and some what would appear to be quite
usable glue oozed out. The brand was 'Victor Rubber Cement' which
contains 'petroleum Naptha'.
>
>
>For how long is the glue still
>good in each of these 2 situations?
>
>
I would tend to go on glue condition rather than time. It my
experience the glue has to be quite liquid when you put it on. Once
the glue starts to have to be manually moved to cover the patch area,
rather than just ooze over the area itself, then the glue is on its
way out IMHO. A patch is only as good as the least permeable part of
the glue wall. A glue that spiderwebs straight from the tube *might*
still work, but a new tube of glue is only a dollar or so, so why risk
it?
And now a personal moan on rubber repair glue.
The smallest tube of puncture glue that I could buy, the last time I
asked was 15g. This may be fine for bike shops but is way too large
for the average rider. Theoretically you might be able to mend 100
punctures with it. In practice the glue will have gone bad long
before you get to that many repairs. A 15g tube is also ridiculously
bulky to carry about. It is at least twice the size of the glue tube
you would get with a pre-packaged puncture kit. This means you can't
put the new tube of puncture glue back in your patch kit when the
original glue tube is consumed.
The last tube of glue I bought (15g), I opened immediately and
squeezed out half of the contents into a disposable tissue and threw
the tissue away. This means the new tube will now fit into my
puncture repair kit and hopefully I won't be left by the side of the
road with a tube of unusable partly evaporated glue in the future.
IMHO a 5 to 7.5g tube, as comes with most prepackaged puncture kits,
is really the only size to have on the road. In my experience an
'opened' glue tube can last for 2 to 3 years.
I would quite happily pay *more* for a 5g glue tube than a 15g one.
Unfortunately where I come from such consumer choice is not available.
SNOOPY
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Steven Woo
wrote:
>Does unused tubular glue like clement or vittoria go bad after a
I wouldn't risk my skin (or anyone beside/behind me's skin for that
matter ) over a two dollar tube of glue. If you have any doubt in
your mind, buy a new tube of glue in a.). In b., I don't know the
"lifespan" of glue but I would speculate if you buy it from your local
bike shop, it could be several years old based on the unpopularity of
tubulars and we haven't heard of a bike shop getting sued (yet) over
old glue so I assume old unopened glue is still good.
Josh
of glue, one for each patch.....
Josh
"Snoopy" <tenn...@caverock.net.nz.N-OS-PAM> wrote in message
news:3b674fa4...@news.caverock.net.nz...