I glue large cuts together. From what I've heard/read Cyanoacrylate was
developed as a substitute for stitching wounds together on the
battlefield during the Vietnam war. Little wonder it bonds skin so
thoroughly. It's also used in its medical counterpart for some surgeries.
Back to gluing cuts. I was sharpening a large hunting knife and managed
to cut the side of my right thumb to the bone. Cut was about 2.5cm and I
could see bone and other structures underneath. Didn't look like I cut
anything else and my thumb still worked ok so rather than getting it
stitched I used a grade of cyano we use for guitar work. Got the bleeding
stopped, wasn't much to begin with. Applied the glue and the cut was
closed immediately. I put cloth tape around the joint so the thumb
wouldn't flex as that was where the cut occurred. A week later the cut
had healed well enough to remove the tape. Now I have a scar but it is a
straight line. Be happy to upload a pic of it.
--
Live Fast, Die Young and Leave a Pretty Corpse
re sig
Its also used for the chance of CSI lifting murderer's fingerprints off the
skin off dead bodies. That is one of the reasons that a tent goes over a
body outdoors. So heaters can go inside and evaporate Cyanoacrylate in a
confined space.
It was actually developed by Kodak in 1942, and was originally used to
splice film.
http://en.wikipedia.org/wiki/Cyanoacrylate
Well dammit I won't have that story to tell my grand children.
>Surprising I've never done it before . Thumb and second finger firmly glued
>to either side of a connecctor.
To dissolve cyanoacrylate you need (warm) water and patience.
Or rather: patience and warm water as the most important
ingredient should go first.
One other thing to notice: superglue may be a marble in some
cases, it has very poor resistance to water.
>Anyone ever glued one hand to the other ?
We may be sloppy but not that stupid ;-)
You may however drop by the nearest convent and ask 'Why?'.
--
Kind regards,
Gerard Bok
They do make a specific solvent for CA; we keep a bottle on hand at the
shop. I have no idea what's in it, but it works very well on skin and
other things, too. We do a couple of assembly jobs involving CA and by
the time you've worked with it for a few hours at a time, you're pretty
much guaranteed to have the stuff all over at least 9 of your fingers.
The solvent cleans it right up.
Physiologically it's pretty innocuous stuff. Besides gluing cuts
together well, I've heard of people mistaking it for a bottle of eye
drops, and it hasn't done any real damage. Inconvenient to have your eye
glued shut for a while though.
>I glue large cuts together. From what I've heard/read Cyanoacrylate was
>developed as a substitute for stitching wounds together on the
>battlefield during the Vietnam war. Little wonder it bonds skin so
>thoroughly. It's also used in its medical counterpart for some surgeries.
Yup... although the off-the-shelf cyanoacrylate has some amount of
toxicity to skin cells, and is not ideal for this purpose. A lot of
people do use it as an emergency / field dressing, though... I
understand that rock climbers often carry a tube.
Medical skin glue is based on a slightly different cyanoacrylate
(butyl rather than methyl, IIRC) and is easier on the skin cells.
It's not widely available, though, except as a medical or vetrinary
adhesive in expensive single-use ampoules).
--
Dave Platt <dpl...@radagast.org> AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!
Keeping a bottle of superglue debonder around is a cheap investment.
If you go to a hobby store which carries a selection of cyanoacrylate
glues (usually of different viscosities and bonding speeds) you ought
to find a supply of debonder in the same rack.
> Anyone ever glued one hand to
>the other ?
Only students of modern Zen koans.
I've made a few mistakes, but have avoided that one.
The second best story I've heard about 'Superglue' mistakes occurred
back in the '60's. One of the plastics engineers described the events
like this.
'Joe' was assigned to do a 'miracle of plastics' demonstration for an
open house the company was hosting. One part of his presentation
involved putting a couple of drops of Eastman 910 at one end of a
strip of rubber, overlapping the other end, then stretching the rubber
until it broke. This demonstrated that the bond was stronger than the
original material. While this was going on, one 10 year old boy was
watching this, obviously fascinated.
Eventually 'Joe' had to take a break. He starts to head to the Men's
room, then realized that he should put the Superglue away. He heads
back to the table, and spots the ten year old applying Superglue to
both hands. At this point the kid looks up, spots 'Joe' heading for
him. The kid quickly clenches his fists, jams them in his pockets,
and vanishes into the crowd. After thinking for a few seconds, Joe
heads back to the Men's room.
===========================================
The best story involves 'Carol' and her live-in boyfriend, 'Matt'.
'Matt' had a way with women. It was a way that didn't involve much
consideration for their feelings, kind words, or affection. 'Carol'
is getting tired of having 'Matt' around, but hadn't quite reached the
point where she was ready to throw him out.
That changed one night when 'Matt' decided to go drinking after work
rather than come home. Eventually ''Matt' showed up drunk, smelling
of beer, cigarette smoke, and cheap perfume. And 'Matt' wanted to
have sex. When 'Carol' objected, 'Matt' slapped her a few times until
she changed her mind. Afterward, 'Matt' promptly goes to sleep on his
back. 'Carol' has had enough, she grabs the bottle of Superglue,
applies some liberally to both of 'Matt's' hands, glues them to his
genitalia, then call the police to report that her boyfriend has raped
her.
PlainBill
IIRC, buncha years ago there was a robber somewhere who, after
robbing somebody at an ATM machine, would super glue the victim's
hands to the machine.
--
PeteCresswell
> In article <pan.2010.09...@hahahahahahahah.nutz.I.am>, Meat
> Plow <mhy...@yahoo.com> wrote:
>
>>I glue large cuts together. From what I've heard/read Cyanoacrylate was
>>developed as a substitute for stitching wounds together on the
>>battlefield during the Vietnam war. Little wonder it bonds skin so
>>thoroughly. It's also used in its medical counterpart for some
>>surgeries.
>
> Yup... although the off-the-shelf cyanoacrylate has some amount of
> toxicity to skin cells, and is not ideal for this purpose. A lot of
> people do use it as an emergency / field dressing, though... I
> understand that rock climbers often carry a tube.
>
> Medical skin glue is based on a slightly different cyanoacrylate (butyl
> rather than methyl, IIRC) and is easier on the skin cells. It's not
> widely available, though, except as a medical or vetrinary adhesive in
> expensive single-use ampoules).
Hmm I'll have to remember that. Didn't seem to prove very toxic to my
cut. Skin had mended around 10 days after. I probably wouldn't use it
if I cut my finger off though :)
I know of a friend's friend whose disgruntled wife fed up with his
drinking used CA to glue the man's penis to his stomach while he was
passed out drunk.
>Medical skin glue is based on a slightly different cyanoacrylate
>(butyl rather than methyl, IIRC) and is easier on the skin cells.
>It's not widely available, though, except as a medical or vetrinary
>adhesive in expensive single-use ampoules).
The problem is that cyanoacrylate breaks down in the body into some
toxic substances. I had surgery in 2002 where the surgeon used glue
instead of sutchers or staples, a major improvement.
I have several types in my first aid box. The easiest to get is
"Liquid Bandage" which is not cyanoacrylate based, but is good enough.
<http://en.wikipedia.org/wiki/Liquid_bandage>
The above URL mentions that the Band-Aid brand of liquid bandage is
cyanoacrylate based.
As for ungluing fingers, there is super glue remover. Lacking that,
acetone or hot water works.
<http://www.ehow.com/how_116797_superglue-skin.html>
<http://www.supergluecorp.com/removingsuperglue.html>
Of course, it's kinda difficult to type these URL's if your fingers
are glued to a connector.
--
Jeff Liebermann je...@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
> As for ungluing fingers, there is super glue remover. Lacking that,
> acetone or hot water works.
> <http://www.ehow.com/how_116797_superglue-skin.html>
> <http://www.supergluecorp.com/removingsuperglue.html>
> Of course, it's kinda difficult to type these URL's if your fingers
> are glued to a connector.
>
I've shortened them here if that is any assistance ;-)
--
Adrian C
>> Medical skin glue is based on a slightly different cyanoacrylate (butyl
>> rather than methyl, IIRC) and is easier on the skin cells. It's not
>> widely available, though, except as a medical or vetrinary adhesive in
>> expensive single-use ampoules).
>
>Hmm I'll have to remember that. Didn't seem to prove very toxic to my
>cut. Skin had mended around 10 days after.
I've used it in that way, as well, with no apparent adverse reactions.
I suppose different people may have different levels of sensitivity to
the stuff.
> In article <pan.2010.09...@hahahahahahahah.nutz.I.am>, Meat
> Plow <mhy...@yahoo.com> wrote:
>
>>> Medical skin glue is based on a slightly different cyanoacrylate
>>> (butyl rather than methyl, IIRC) and is easier on the skin cells. It's
>>> not widely available, though, except as a medical or vetrinary
>>> adhesive in expensive single-use ampoules).
>>
>>Hmm I'll have to remember that. Didn't seem to prove very toxic to my
>>cut. Skin had mended around 10 days after.
>
> I've used it in that way, as well, with no apparent adverse reactions. I
> suppose different people may have different levels of sensitivity to the
> stuff.
Absolutely. My mom is very allergic to aspirin. I'm not. I think as you
said the same holds true for these type of chemicals. However in larger
amounts other than a tiny droplet or two I spread along the 2.5cm cut all
bets may be off. If you are a surgeon and are using it internally you
would want the least possibilities of toxicity. If I were out in the
field and gashed my hand wide open many miles from help I'd opt-in the
CA :)
Acetone, and generally it won't hurt you if you don't inhale it all...
>Keeping a bottle of superglue debonder around is a cheap investment.
>If you go to a hobby store which carries a selection of cyanoacrylate
>glues (usually of different viscosities and bonding speeds) you ought
>to find a supply of debonder in the same rack.
Has anybody ever found an application where superglue works well
except on human skin? I find the crap brittle as hell and have yet to
see anything glued with it last more than a few weeks before breaking.
Any application that does not apply a sheer force. I use it to glue new
guitar frets into a slotted fretboard. It's a CA designed for that
application though. Also good for guitar nuts. Can't imagine something so
popular that didn't work.
I use it on optical things often, because it's easily removed, like Duco
cement except stronger and faster-setting. As long as you use just a
little, it doesn't cause too much nasty frosting nearby.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net
>I use it on optical things often, because it's easily removed, like Duco
>cement except stronger and faster-setting. As long as you use just a
>little, it doesn't cause too much nasty frosting nearby.
I suppose if you didn't want something permenant, it might work well.
>Back to gluing cuts. I was sharpening a large hunting knife and managed
>to cut the side of my right thumb to the bone. Cut was about 2.5cm and I
>could see bone and other structures underneath. Didn't look like I cut
>anything else and my thumb still worked ok so rather than getting it
>stitched I used a grade of cyano we use for guitar work. Got the bleeding
>stopped, wasn't much to begin with. Applied the glue and the cut was
>closed immediately. I put cloth tape around the joint so the thumb
>wouldn't flex as that was where the cut occurred. A week later the cut
>had healed well enough to remove the tape. Now I have a scar but it is a
>straight line. Be happy to upload a pic of it.
Is that a clue to your usenet nick?
>Hmm I'll have to remember that. Didn't seem to prove very toxic to my
>cut. Skin had mended around 10 days after. I probably wouldn't use it
>if I cut my finger off though :)
When dried, it's non-toxic. In liquid form, the volatiles are a
problem if they get to the mucus membranes. Repeated use can also
cause one to develop an allergy, with flu-like symptoms:
<http://wapedia.mobi/en/Cyanoacrylates>
<http://wapedia.mobi/en/Cyanoacrylate#3.>
I've glued a few cuts together without much difficulty. It stung a
bit when applied, but that went away rapidly.
Hmmm.... looks like the common adhesive (methyl 2-cyanoacrylate or
ethyl-2-cyanoacrylate), is different from the veterinary glue (n-Butyl
cyanoacrylate), which is different from the surgical glue (2-octyl
cyanoacrylate).
>Has anybody ever found an application where superglue works well
>except on human skin? I find the crap brittle as hell and have yet to
>see anything glued with it last more than a few weeks before breaking.
I have to agree on the brittleness problem. It's so handy, that I
tend use it on items where urethane, RTV, or epoxy would be more
appropriate.
Where I've used SuperGlue successfully are:
1. Custom rubber o-rings
2. Glass and ceramic repairs. I think my coffee cup has had the
handle superglued in 3 different places.
3. Hard plastic parts where the break is clean and has not been
stretched or bent. If the plastic is soft and/or bends, CA will not
work.
4. Tacking large parallel surfaces together.
5. Tacking SMD components to a PCB before soldering. A toothpick
works well as an applicator.
When I worked at a hi-fi store, we used to super-glue tone-arm bases onto
the metal surface of the Lux turntable arm mount (rather than cutting screw
holes into the surface). This allowed the mount to be reused for a different
arm, simply by holding a block of wood against the tone-arm base and
striking it with a hammer.
>I have to agree on the brittleness problem. It's so handy, that I
>tend use it on items where urethane, RTV, or epoxy would be more
>appropriate.
Thee are some newer formulations on the market which are intended
to be less brittle, and thus able to handle more impact that the
standard formulas. The one I bought (Gorilla brand) says that it's
reinforced with rubber particles. I infer that the rubber both
reduces stress within the adhesive during compression or tension (thus
reducing the tendency for cracks to start) and also helps prevent
cracks from propagating through the material once they do start.
http://www.threebond.co.jp/en/technical/technicalnews/pdf/tech46.pdf
has some details.
I've made my first experimental use of the Gorilla rubber-
reinforced variety, gluing a set of hardwood scales to a pocketknife
handle. I'll be quite interested to see how the knife holds up with
time. I know I'm taking a risk, not fastening the scales to the
handle with small screws... but the scales are hand-finished olive
burl and I just couldn't bear to drill holes in it.
"AZ Nomad" <azno...@PremoveOBthisOX.COM> wrote in message
news:slrni80d99.p...@ip70-176-155-130.ph.ph.cox.net...
>I use it to splice "O" rings into custom sizes. If done properly [clean
>single edge razor blade, square cut] holds up well as a VCR drive belt,
>even in a swimming pool vacuum line leaf trap. Using a telfon "v" block
>would help alignment but I've managed without.
The square cut (butt splice) doesn't work well. The problem is that
the hardened super glue goes across the diameter of the rubber o-ring.
If this diameter is compressed in any way, the superglue cracks, and
the o-ring falls apart. This is especially important for internal
o-ring seals, which use o-ring compression to maintain pressure. I've
done bench tests on various methods and found butt splices lacking. It
will work with a flexible adhesive, such as RTV, but not rock hard CA
glues.
Instead, try a 45 degree bevel cut. If you have an old 1/4" magnetic
tape splicer, there's usually a form and guillotine blade suitable for
the purpose. I do it without any alignment aids, which is good
enough. My favorite cutting device is a safety razor or surgeons
scalpel.
When glued at a 45 degree angle, you get a larger surface contact area
for the glue. The joint is also less in tension and more in shear,
which does make it slightly weaker. I haven't noticed any measureable
difference when I did some stretch tests. The 45 degree splice also
allows the o-ring to be compressed in almost all orientations, without
cracking the CA glue joint.
I dropped my "Arkansas white" stone while putting the finishing touches
on a kitchen knife. The break was right across the middle of the 7" long
stone. I put a bit of superglue on the broken surface and pressed the
parts back together. The pieces went together so well that you can't
see, much less feel, the break. And the stone is still going strong
after more than fifteen years.
Isaac
> Has anybody ever found an application where superglue works well
> except on human skin? I find the crap brittle as hell and have yet to
> see anything glued with it last more than a few weeks before breaking.
Sure. It worked fine for me gluing carbide to tool steel. Far from
brittle, it was the most compliant of the three materials.
It held a ton or so of force in another application, gluing
stainless tapers together (for an ultrasonic drill tip).
How do you use "just a little" with the viscosity almost of liquid helium
and coming in aluminium tubes of a gauge almost the same as tin cans it
seems impossible to squeeze out a small drop, only. I must adopt the storage
in small airtight bottle with (non cotton) sachet of activated silica gel
inside. Hopefully then it will be more amenable to squeezing out just enough
to wet a needle point to transfer to the intended.
>I must adopt the storage
>in small airtight bottle with (non cotton) sachet of activated silica gel
>inside. Hopefully then it will be more amenable to squeezing out just enough
>to wet a needle point to transfer to the intended.
There's a trick. I use bottles with a stainless tube for dispensing
cyanoacrylate adhesive. Something like this.
<http://www.technologylk.com/weld-on-applicator-bottle-with-needle-lk-AAB4.htm>
<http://www.hobbylinc.com/htm/mmr/mmrmkdbp.htm>
As soon as you use it, the stainless tip will clog. No problem. Find
a cancer stick igniter, and heat the stainless barrel. There will be
a small puff of noxious smog as the CA burns off, and the tip is
clear.
It's quite easy to dispense just one drop with a stainless tip and
quite difficult with a CA encrusted plastic tip commonly found in the
hardware store CA products. If you want a smaller drop, try a smaller
dispenser barrel.
"Jeff Liebermann" <je...@cruzio.com> wrote in message
news:teo086duej6vl3ajn...@4ax.com...
Easy; you just smear it on with your finger 8^}
Isaac
> On Fri, 3 Sep 2010 08:28:29 +0100, "N_Cook" <div...@tcp.co.uk> wrote:
>
> >I must adopt the storage
> >in small airtight bottle with (non cotton) sachet of activated silica gel
> >inside. Hopefully then it will be more amenable to squeezing out just enough
> >to wet a needle point to transfer to the intended.
>
> There's a trick. I use bottles with a stainless tube for dispensing
> cyanoacrylate adhesive. Something like this.
> <http://www.technologylk.com/weld-on-applicator-bottle-with-needle-lk-AAB4.htm
> >
> <http://www.hobbylinc.com/htm/mmr/mmrmkdbp.htm>
>
> As soon as you use it, the stainless tip will clog. No problem. Find
> a cancer stick igniter, and heat the stainless barrel. There will be
> a small puff of noxious smog as the CA burns off, and the tip is
> clear.
>
> It's quite easy to dispense just one drop with a stainless tip and
> quite difficult with a CA encrusted plastic tip commonly found in the
> hardware store CA products. If you want a smaller drop, try a smaller
> dispenser barrel.
Some newer formulations can be brushed on; they don't go off as fast,
and it's a lot easier to get the joint properly aligned than it used to
be.
Also, some formulations will work fine with things like paper or
cardboard, too.
Isaac
You put a drop of it on a bit of scrap plastic, and apply with a
toothpick--just like epoxy. If you use too much, the free surface
outgasses like mad and you wind up with white plastic snow all over
everything. There are 'low outgassing' PMMA formulations, but they're
only low by comparison.
> Surprising I've never done it before . Thumb and second finger firmly glued
> to either side of a connecctor. I tried methylated spirits first but no
> effect seemingly. Then dilute acetone as nail varnish remover. I was
> concerned about being too long on the skin so some cotton wool balls of
> acetone around both areas and a Q-tip soaked in acetone, with a rotating
> wedge-like motion, cautiously wedging skin from connector worked, but anyone
> elses experiences/advice for the next time? Anyone ever glued one hand to
> the other ?
If you had posted to one of the model plane club groups you would have
felt very much at home - in that hobby it is endemic
David - with glue free fingers at the moment
I think I will try introducing a dot of dye to the next tube I open ,as well
as store in airtight bottle with silica gel. Won't be able to change the
viscosity (lack of) but at least I might be able to see it. I was melding
part of one socket into another to make a match to a non standard plug and a
nice tight fit but that super capilliary action took the unknowing excess of
glue about half an inch travel to where there were holes to the outside,
where my fingers were.
Glue tiny parts to a lathe turning plate. As long as you are just turning
the parts with light force, they stay on. A small tap removes them.
--
Paul Hovnanian pa...@hovnanian.com
----------------------------------------------------------------------
Have gnu, will travel.
Superglue works much better on some things when you
use the accelerator. It comes in a separate spray bottle.
I often try to use it as a tempoary hold, and then use silicone rtv
or other glue. Silicone withstands movement, and superglue does not.
I also see JB Weld easily breaking with some vibration.
It did work good for me months at a time, gluing rubber motor mounts
on my 64 mustang. I made it cross country.
NASA used to supply superglue in a large plastic bottle, with a large
top which never got clogged. The trouble was worrying about spilling
it.
greg
>Superglue works much better on some things when you
>use the accelerator. It comes in a separate spray bottle.
Sorta. It does seem to make a better joint, but it also really speeds
up the hardening. About 2 to 4 seconds is what I see. That may be
too fast depending on what you're doing. The accelerator is usually
Toluidine, a form of methylbenzine.
<http://en.wikipedia.org/wiki/Toluidine>
Alcohol does much the same thing, and is much cheaper and safer.
Also safer is baking soda. Just dust a little on the joint and it
hardens almost instantly.
<http://www.ipmsstockholm.org/magazine/2004/10/stuff_eng_tech_ca_glue.htm>
> AZ Nomad wrote:
>
> > Has anybody ever found an application where superglue works well
> > except on human skin? I find the crap brittle as hell and have yet to
> > see anything glued with it last more than a few weeks before breaking.
>
> Glue tiny parts to a lathe turning plate. As long as you are just turning
> the parts with light force, they stay on. A small tap removes them.
Also good on the mill.
About 35 years ago I accidentally "leveraged off" the metal "pointer ring"
on a metal knob on a Pioneer product. It wouldn't stay in place by itself,
so I glued it back with superglue. It's still there.
My guess is that the fastness of the joint depends on how clean the surfaces
are, and how much glue you use. The less you use, the more likely the bond
is to survive.