Superglue query
 

I was talking to a mechanical engineer today and he mentioned
that he stores super glue in the fridge - fair enough- I do also.
But he removes the top so the air can get to it .
Anyone do the same so it doesn't go off of its own accord when
excluded from air ? Apparently he's done it for years ever
since asking the Permabond rep why they never sell full bottles.

electronic hints and repair briefs , schematics/manuals list on
http://homepages.tcp.co.uk/~diverse

"N Cook" wrote in message
...
| I was talking to a mechanical engineer today and he mentioned
| that he stores super glue in the fridge - fair enough- I do also.
| But he removes the top so the air can get to it .
| Anyone do the same so it doesn't go off of its own accord when
| excluded from air ? Apparently he's done it for years ever
| since asking the Permabond rep why they never sell full bottles.
|
| electronic hints and repair briefs , schematics/manuals list on
| http://homepages.tcp.co.uk/~diverse

Super Glue

Super glue is an acrylic resin (artificial gum) made from chemicals obtained
from petroleum. When exposed to moisture the small, loosely-bound molecules
in this resin join to form long, tight chains. This enables it to harden
instantly, a process known as “polymerisation”.
Inside the tube, an acid prevents the glue from hardening. But the moment it
touches any surface, moisture in the air makes the gum polymerise. You must
be careful not to drop the glue on your fingers, as it bonds with skin
easily.

http://tinyurl.com/4an9w

N

"N Cook" bravely wrote to "All" (09 Dec 04 22:40:47)
--- on the heady topic of "Superglue query"

NC From: "N Cook"

NC I was talking to a mechanical engineer today and he mentioned
NC that he stores super glue in the fridge - fair enough- I do also.
NC But he removes the top so the air can get to it .
NC Anyone do the same so it doesn't go off of its own accord when
NC excluded from air ? Apparently he's done it for years ever
NC since asking the Permabond rep why they never sell full bottles.

I always keep mine in the freezer, it's much better than the fridge.
It doesn't freeze nor turn to jelly and dries just as fast. Keeping
the top off is a bad idea because the super glue combines with water
vapour in the air to harden instantly. Your friend is just weakening
his glue by leaving it in contact with the air.

A*s*i*m*o*v

.... That was a fascinating period of time for electronics

"N Cook" wrote in message
...
I was talking to a mechanical engineer today and he mentioned
that he stores super glue in the fridge - fair enough- I do also.
But he removes the top so the air can get to it .
Anyone do the same so it doesn't go off of its own accord when
excluded from air ? Apparently he's done it for years ever
since asking the Permabond rep why they never sell full bottles.

electronic hints and repair briefs , schematics/manuals list on
http://homepages.tcp.co.uk/~diverse



Keeping it in the fridge is a good idea, I'm always discovering that my tube
of superglue has hardened, only takes a tiny air leak and it's all over
quickly.

"James Sweet" wrote in message
news:58bud.3384$N%6.1735@trnddc05...

"N Cook" wrote in message
...
I was talking to a mechanical engineer today and he mentioned
that he stores super glue in the fridge - fair enough- I do also.
But he removes the top so the air can get to it .
Anyone do the same so it doesn't go off of its own accord when
excluded from air ? Apparently he's done it for years ever
since asking the Permabond rep why they never sell full bottles.

electronic hints and repair briefs , schematics/manuals list on
http://homepages.tcp.co.uk/~diverse



Keeping it in the fridge is a good idea, I'm always discovering that my
tube
of superglue has hardened, only takes a tiny air leak and it's all over
quickly.



That is what I would have said but I would believe Bob, my informant,
implicitly.

I can find next to nothing Googling about this, just someone else's
posting

http://studio59.homestead.com/tips.html

" GLUE TIPS

Leave the top off super glue and stand it upright to prevent the top
from glueing itself to the bottle. It will not dry out."

"John Del" wrote in message
...
Subject: Superglue query
From: "NSM"
Date: 12/9/04 6:55 PM Eastern Standard Time
Message-id:

You must
be careful not to drop the glue on your fingers, as it bonds with skin
easily.

Which is how I test it before I use it. Crazy glue should bond your
fingers
INSTANTLY and very tightly. If it's slow, throw it out.


John Del
Wolcott, CT


I dunno, if I would trust some of the "crazy glues" out there to do some of
the so called stunts they did on TV. I've seen some that wouldn't stick to
crap. But don't forget, if you're going to "test" it with your fingers, keep
some fingernail polish remover close by - just in case the stuff does decide
to work. That and maybe a scalpel! OR too, maybe a vox operated phone - to
call for help in case you can't dial.

MM

"John Del" wrote in message
...
Subject: Superglue query
From: "NSM"
Date: 12/9/04 6:55 PM Eastern Standard Time
Message-id:

You must
be careful not to drop the glue on your fingers, as it bonds with skin
easily.

Which is how I test it before I use it. Crazy glue should bond your
fingers
INSTANTLY and very tightly. If it's slow, throw it out.

Of course, the speed of setting depends on the moisture contents of your
fingers, which are often dry; so a better way it to liberally smear a thin
layer over your palms then either clasp them together for a minute or so, or
better still - grab hold of your wife/girlfriend/mistress/some passing dolly
bird in a prominent area.. maybe not the most scientific way of testing; but
at least it can be fun.

"Moneyman" wrote in message
erio.net...

| I dunno, if I would trust some of the "crazy glues" out there to do some
of
| the so called stunts they did on TV. I've seen some that wouldn't stick
to
| crap. ...

If you want something that will stick to crap, try a woollen baby blanket.

N

On Thu, 9 Dec 2004 22:40:47 -0000 "N Cook"
wrote:

I was talking to a mechanical engineer today and he mentioned
that he stores super glue in the fridge - fair enough- I do also.
But he removes the top so the air can get to it .
Anyone do the same so it doesn't go off of its own accord when
excluded from air ? Apparently he's done it for years ever
since asking the Permabond rep why they never sell full bottles.

These adhesives need a bit of humidity to catylize the reaction that
causes them to harden. You'll find that they don't harden as quickly
on extremely dry days, like indoors here in the winter. You can get
around this by breathing heavily on the parts just before applying the
glue.

Storing in the frig helps, because the air in the frig is dehumidified
by virtue of passing over the freezer coils. The moisture is pulled
out of the air and eventually leaves the freezer when the defrost
cycle runs.

The downside of storing like this is that if you take a cold bottle
out of the freezer and open it. Moist room air that gets inside will
precipitate water out which can be counterproductive. I prefer to
store such adhesives in the frig part, not in the freezer. The dew
point is almost as low there, but water is not as likely to settle out
inside the container when you use it.

Many manufacturers recommend storing in the frig, but letting the
bottle come up to room temp before opening. I'm afraid I'm never
patient enough, or organized enough, for that.

-
-----------------------------------------------
Jim Adney
Madison, WI 53711 USA
-----------------------------------------------