13 Feb
2007
13 Feb
'07
3:52 a.m.
Just a thank-you to the list. I accidentally broke the top to a very
nice filing box I've been using for years (it was designed for
floppies, I think, but I now use it for paper - 8" floppies, I suspect,
since an 8?" paper sheet just barely fits).
Turns out acetone dissolves the plastic, and I was able to solvent-weld
the pieces back together with acetone. I let it dry over the weekend
and now it is all good.
But I never would have thought to try that without all the discussions
of such things here on the list. Hence the thanks. Neat the ways
knowledge finds unexpected application!
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13 Feb
13 Feb
4:40 p.m.
On 13 Feb 2007 at 3:52, der Mouse wrote:
Turns out acetone dissolves the plastic, and I was
able to solvent-weld
the pieces back together with acetone. I let it dry over the weekend
and now it is all good.
Great that it worked for you, but be advised that acetone will also
(in my experience) turn some plastics into grainy mush, so it's not
a universal solution for plastics.
Cheers
Chuck
9:13 p.m.
[...] be advised that acetone will also (in my
experience) turn some
plastics into grainy mush, [...]
Well, I did first try applying acetone to a noncritical area of the
same part, to see what it would do.
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14 Feb
14 Feb
2:30 a.m.
At 1:40 PM -0800 2/13/07, Chuck Guzis wrote:
On 13 Feb 2007 at 3:52, der Mouse wrote:
Yes, methylene chloride is the proper plastic solvent for styrene
types. Plexiglass, Lexan, and many plastics will soften with this,
and bond almost instantly. Hold for a few seconds to set, then let
sit overnight to reach maximum hardness. Doesn't dissolve the plastic
other than at the contact point. This is the stuff they use in
plastic shops...along with some other solvents.
John :-#)#
Turns out acetone dissolves the plastic, and I
was able to solvent-weld
the pieces back together with acetone. I let it dry over the weekend
and now it is all good.
Great that it worked for you, but be advised that acetone will also
(in my experience) turn some plastics into grainy mush, so it's not
a universal solution for plastics.
Cheers
Chuck 
3:45 p.m.
On Tue, 13 Feb 2007, John Robertson wrote:
At 1:40 PM -0800 2/13/07, Chuck Guzis wrote:
Has anyone found a solvent that will solidly weld the PC+ABS blends yet? I
run into various blends of PC+ABS all the time and have yet to find
anything that will work well. Methylene Chloride will melt the ABS part of
the blend, but it makes a brittle joint.
-Toth
Great that it worked for you, but be advised that acetone will also (in
my experience) turn some plastics into grainy mush, so it's not a
universal solution for plastics.
Yes, methylene chloride is the proper plastic solvent for styrene types.
Plexiglass, Lexan, and many plastics will soften with this, and bond
almost instantly. Hold for a few seconds to set, then let sit overnight
to reach maximum hardness. Doesn't dissolve the plastic other than at
the contact point. This is the stuff they use in plastic shops...along
with some other solvents.
5:28 p.m.
On 13 Feb 2007 at 23:30, John Robertson wrote:
Yes, methylene chloride is the proper plastic solvent
for styrene
types. Plexiglass, Lexan, and many plastics will soften with this,
and bond almost instantly. Hold for a few seconds to set, then let
sit overnight to reach maximum hardness. Doesn't dissolve the plastic
other than at the contact point. This is the stuff they use in
plastic shops...along with some other solvents.
Has anyone tried Plastic Weld? Here's a web page:
http://www.plastruct.com/Pages/GlueContents.html
Cheers,
Chuck
8:53 p.m.
On Thu, 15 Feb 2007, Tony Duell wrote:
I would like to press charges against a bottle of methyl ethyl ketone.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Has anyone
tried Plastic Weld? Here's a web page:
I don't know if it;s the same stuff, but _good_ model shops in the UK
sell something branded 'Plastic Weld'. It seems to be mostly methelyne
chloride and is what I sue for repairing broken computer cases, etc. 
9:17 p.m.
Has anyone tried Plastic Weld? Here's a web
page:
I don't know if it;s the same stuff, but _good_ model shops in the UK
sell something branded 'Plastic Weld'. It seems to be mostly methelyne
chloride and is what I sue for repairing broken computer cases, etc. 
15 Feb
15 Feb
1:56 p.m.
chloride and
is what I sue for repairing broken computer cases, etc.
I would like to press charges against a bottle of methyl ethyl ketone.
6443
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6445
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9 comments
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-
ard＠p850ug1.demon.co.uk -
cclist＠sydex.com -
dgriffi＠cs.csubak.edu -
jrr＠flippers.com -
mouse＠Rodents.Montreal.QC.CA -
spectre＠floodgap.com -
tothwolf＠concentric.net