What plastic is the Nikon Coolpix camera body made up of (why did glue melt it?)

Jeanette Guire wrote:

On Mon, 15 Oct 2007 12:06:46 -0000, Lloyd E. Sponenburgh wrote:


The CA "fogging" is because CA cements sublime at room temperatures, and
recondense on adjacent surfaces -- where they ultimately cure in the form
of a white film.


That must be what happened. The entire inside of the battery compartment
turned a milky white and changed from a smooth surface to a slightly
rougher surface. Even the yellow plastic sticker showing which way to put
the batteries seemed to get fogged up. Wierd.


Even weirder, this "feature" is used in developing fingerprints in
criminal investigations.


http://www.ccs.neu.edu/home/feneric/cyanoacrylate.html


R

On Mon, 15 Oct 2007 09:47:51 -0500, cavelamb himself wrote:

Just a SWAG, but it could be that the plastic seems to melt
due to the reaction heat of the epoxy. ie: it DID melt.

Hey, you know, this might be the answer! Thanks. It did seem to only happen
in the beginning, while the epoxy mix was still wet. I think this is what
happened. At least it makes sense. Thanks!

Lloyd E. Sponenburgh writes:

IF the plasticizer was PVC, you can expect it to re-harden in a
few weeks.

PVC? PVC is the plastic, not the plasticizer?

On Mon, 15 Oct 2007 09:51:09 -0500, cavelamb himself wrote:

http://www.ccs.neu.edu/home/feneric/cyanoacrylate.html

Wow!

"JR North" wrote in message
.. .
Don't know, but the minute amount of CA req to attach the repair part in
that location should not cause a fogging problem. Prolly you used *way*
too much. Also, there are less energetic CA formulas, like slow/thick
gap-filling, which do not go off with the fumes and heat that super-thin
CA does. Once more, a little dab'l do ya.
JR
Dweller in te cellar

Jeanette Guire wrote:
Do you know what plastic the Nikon Coolpix 3100 camera body is made up
of?

The reason I ask is that I had the same problem as all other Nikon
Coolpix
owners did - namely the tiny plastic loop on the camera body breaks off
so
the battery door won't latch so I superglued and epoxied a paperclip in
place. This worked but everywhere inside the battery compartment was
fogged
and pitted with tiny holes from the Locktite cyanoacrylate superglue and
everywhere the Locktite Quick Set 5-minute Epoxy was wet, the camera body
melted. Obviously I used the wrong glues and epoxy but nowhere in the
reference
articles on how to fix the common flaw in the Nikon Coolpix cameras did
it
say WHICH epoxy and glue were used!!!!

Here is a photo of the Nikon Coolpix camera body BEFORE it breaks
http://www.dpreview.com/reviews/Niko...ompartment.jpg

Here is a photo of Nikon Coolpix camera body ultimately broken
http://files.myopera.com/mcduret/blog/IMGP0065b.JPG

Here a user fixed the Nikon Coolpix camera body with a paperclip
http://www.uthunter.com/images/Nikonfix.jpg

Here a user fix the Nikon Coolpix camera with a tripod
http://files.myopera.com/mcduret/blog/IMGP0070b.JPG

Here is how I fixed the Nikon Coolpix 3100 camera with epoxy
http://usera.imagecave.com/coolpixfixer/

Here is a photo of how Nikon fixed the flaw themselves
http://www.scaredpoet.com/images/E7600_batterydoor.jpg

Since the crazy glue fogged and pitted the body and since the epoxy
melted
the body where it touched and stayed wet, I must have used the wrong
glues.
The epoxy says not to use on polyethylene or polypropylene - but what is
the Nikon Coolpix 2100/3100 camera body made up of?



Why in the world didn't you just send it back to Nikon. They would have
probably chucked that one and sent you another. And another. And another.

Steve

In rec.crafts.metalworking Jeanette Guire wrote:
On Mon, 15 Oct 2007 05:27:41 -0700, Rich wrote:

what is the Nikon Coolpix 2100/3100 camera body made up of?

Polystyrene garbage. A step from even rotten polycarbonate.

That begs the question of which is the best substance to glue a paperclip
onto the camera body to fix the infamous Nikon Coolpix camera flaws?

plastic is clearly too weak for that loop.

I'd repair it with paperclip wire melted into place. zig zag the wire
for better grip on the plastic, then glue. GC Bond (used in electronics
repair) would be fine and doesn't hurt most plastics.

On Mon, 15 Oct 2007 14:26:21 +0000, Jeanette Guire wrote:
On Mon, 15 Oct 2007 05:27:41 -0700, Rich wrote:

what is the Nikon Coolpix 2100/3100 camera body made up of?

Polystyrene garbage. A step from even rotten polycarbonate.

That begs the question...

No, it doesm't. It _raises_ the question, it _demands_ the
question, it _prompts_ the question, but it does _NOT_ "beg"
the question:

http://en.wikipedia.org/wiki/Begging_the_question

Thanks,
Rich Grise, self-appointed chief,
Internet Grammar Police.

Richard J Kinch fired this volley in
:

Lloyd E. Sponenburgh writes:

IF the plasticizer was PVC, you can expect it to re-harden in a
few weeks.

PVC? PVC is the plastic, not the plasticizer?


PVC is often used as a plasticizer in other more brittle plastics. It's
most of what's in plastic fishing worms, and what made them dissolve
tackle boxes until the makers hit on using polypropylene instead of
styrene.

LLoyd

Jeanette Guire fired this volley in
t:

On Mon, 15 Oct 2007 05:27:41 -0700, Rich wrote:

what is the Nikon Coolpix 2100/3100 camera body made up of?

Polystyrene garbage. A step from even rotten polycarbonate.

That begs the question of which is the best substance to glue a
paperclip
onto the camera body to fix the infamous Nikon Coolpix camera flaws?


If it's styrene for sure, then ordinary Testor's Model Cement is the
ideal fix.

LLoyd

On Mon, 15 Oct 2007 05:27:41 -0700, Rich wrote:

On Oct 15, 2:08 am, Jeanette Guire
wrote:
Do you know what plastic the Nikon Coolpix 3100 camera body is made up of?

The reason I ask is that I had the same problem as all other Nikon Coolpix
owners did - namely the tiny plastic loop on the camera body breaks off so
the battery door won't latch so I superglued and epoxied a paperclip in
place. This worked but everywhere inside the battery compartment was fogged
and pitted with tiny holes from the Locktite cyanoacrylate superglue and
everywhere the Locktite Quick Set 5-minute Epoxy was wet, the camera body
melted.

Obviously I used the wrong glues and epoxy but nowhere in the reference
articles on how to fix the common flaw in the Nikon Coolpix cameras did it
say WHICH epoxy and glue were used!!!!

Here is a photo of the Nikon Coolpix camera body BEFORE it breakshttp://www.dpreview.com/reviews/NikonCP3100/Images/battcompartment.jpg

Here is a photo of Nikon Coolpix camera body ultimately brokenhttp://files.myopera.com/mcduret/blog/IMGP0065b.JPG

Here a user fixed the Nikon Coolpix camera body with a papercliphttp://www.uthunter.com/images/Nikonfix.jpg

Here a user fix the Nikon Coolpix camera with a tripodhttp://files.myopera.com/mcduret/blog/IMGP0070b.JPG

Here is how I fixed the Nikon Coolpix 3100 camera with epoxyhttp://usera.imagecave.com/coolpixfixer/

Here is a photo of how Nikon fixed the flaw themselveshttp://www.scaredpoet.com/images/E7600_batterydoor.jpg

Since the crazy glue fogged and pitted the body and since the epoxy melted
the body where it touched and stayed wet, I must have used the wrong glues.
The epoxy says not to use on polyethylene or polypropylene - but what is
the Nikon Coolpix 2100/3100 camera body made up of?

Polystyrene garbage. A step from even rotten polycarbonate.

HIPS is pretty good these days (and not much different in price from
good ABS or polycarbonate). It also molds very nicely, being a
crystalline rather an amorphous plastic. A lot of IR remotes are
molded from HIPS. It's not your father's polystyrene.

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com