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Mike Raiford wrote:
> Invisible wrote:
>> Question: Does acetone disolve backup tape?
>
> Dip a Styrofoam cup into some acetone. Hours of fun.. fumy... fumy...
> fuuuuuuunnnnnn... with a squishy (and fumy) ball of what was plastic
> before. the fumes... they're quite intoxicating... aren't they?
Butyl acetate does that all by itself... smells like peardrops...
only... stronger. x_x
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Mike Raiford wrote:
> Invisible wrote:
>
>> Wikipedia suggests it might be Mylar (i.e., polyethylene
>> terephthalate). I still don't know how to make it disolve though. So
>> far we've tried:
>>
>> - Acetone
>> - Hexane
>> - Butyle acetate
>
> Slow day at the lab? XD
...you noticed? :-}
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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clipka wrote:
> Just a quick question: *Why* would you want to dissolve it in the first place?
>
> If it is only about rendering it unusable, how about a nice oscillating magnetic
> field? Microwave oven? Using a strong hole punch axially on the spool to convert
> it to confetti? Cutting the spool in two halves using a strong paper cutter? ...
How do you prove that the magnetic field was strong enough to erase it
properly, all the way through? OTOH, if you cut it to ribbons or
dissolve it, there's little doubt that it's destroyed.
Microwave oven would be a tad hazardous, I suggest.
I have tried using a saw to cut it in half, but it's slow, hard work,
and if you don't manually tease the fragments apart, they tend to latch
on to each other at their friad ends, so you can still reconstruct the
correct sequencing. But it takes *ages* to seperate them all by hand...
I also tried the shredder. But it's like trying to shred clingfilm.
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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>> Perhaps I need to actually unwind the tape from the spool. That'll take a
>> seriously long time though; IIRC, there's about 8 km of tape in there! o_O
>
> Ah, I see. I've never seen one of these tapes so thought it was either
> like a camera film or something more solid like a plastic disc. I would
> imagine that if you unravel it, it would dissolve far quicker.
An individual strand of tape is very weak. However, get a few of them,
and it rapidly becomes *absurdly* strong. Scissors simply won't cut it -
and I have fairly meaty scissors.
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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On Fri, 15 May 2009 20:35:46 +0200, Orchid XP v8 <voi### [at] dev null> wrote:
>
> How do you prove that the magnetic field was strong enough to erase it
> properly, all the way through? OTOH, if you cut it to ribbons or
> dissolve it, there's little doubt that it's destroyed.
>
> Microwave oven would be a tad hazardous, I suggest.
>
> I have tried using a saw to cut it in half, but it's slow, hard work,
> and if you don't manually tease the fragments apart, they tend to latch
> on to each other at their friad ends, so you can still reconstruct the
> correct sequencing. But it takes *ages* to seperate them all by hand...
>
> I also tried the shredder. But it's like trying to shred clingfilm.
Will it blend?
--
FE
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On Fri, 15 May 2009 19:35:46 +0100, Orchid XP v8 wrote:
> I also tried the shredder. But it's like trying to shred clingfilm.
Here in the US at least, most companies that provide confidential
document shredding will take magnetic media to be destroyed as well.
Does your company use such a service?
Jim
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> Question: Does acetone disolve backup tape?
This could get rid of it and your boss too.
http://www.hurikanincinerators.com/hurikan150e.asp
And it's EU emmision compliant. I bet you could
save up a pile of junk and then rent one for a day.
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Orchid XP v8 wrote:
> clipka wrote:
>
>> Just a quick question: *Why* would you want to dissolve it in the
>> first place?
>>
>> If it is only about rendering it unusable, how about a nice
>> oscillating magnetic
>> field? Microwave oven? Using a strong hole punch axially on the spool
>> to convert
>> it to confetti? Cutting the spool in two halves using a strong paper
>> cutter? ...
>
> How do you prove that the magnetic field was strong enough to erase it
> properly, all the way through? OTOH, if you cut it to ribbons or
> dissolve it, there's little doubt that it's destroyed.
>
> Microwave oven would be a tad hazardous, I suggest.
>
> I have tried using a saw to cut it in half, but it's slow, hard work,
> and if you don't manually tease the fragments apart, they tend to latch
> on to each other at their friad ends, so you can still reconstruct the
> correct sequencing. But it takes *ages* to seperate them all by hand...
>
> I also tried the shredder. But it's like trying to shred clingfilm.
>
Bah.. Thermite!
--
void main () {
if version = "Vista" {
call slow_by_half();
call DRM_everything();
}
call functional_code();
}
else
call crash_windows();
}
<A HREF='http://www.daz3d.com/index.php?refid=16130551'>Get 3D Models,
3D Content, and 3D Software at DAZ3D!</A>
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On Fri, 15 May 2009 18:10:31 -0700, Patrick Elliott wrote:
> Bah.. Thermite!
Shiny. :-)
Jim
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Invisible <voi### [at] devnull> wrote:
> St. wrote:
>
> > Erm, no, but while you're doing this experiment, tell me what the backup
> > tape is made of.
>
> Wikipedia suggests it might be Mylar (i.e., polyethylene terephthalate).
> I still don't know how to make it disolve though. So far we've tried:
>
> - Acetone
> - Hexane
> - Butyle acetate
>
If it's polyethylene of some sort, then it's practically indestructible! Well,
almost.
Looked up 'polyethylene' in wikipeadia; here's what it says:
"Polyethylene (other than cross-linked polyethylene) usually can be dissolved at
elevated temperatures in aromatic hydrocarbons such as toluene or xylene, or in
chlorinated solvents such as trichloroethane or trichlorobenzene."
Mmm, what yummy cancer-causing chemicals!
BTW, it also says that 60 million tons of polyethylene are produced each
year--so all of it will probabably still be around in landfills long after the
human race has died out!
KW
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