Plexiglass protective paper

[jerry wass]

Anybody had any experience Peeling Protective Paper from
Plexiglass??---When it's old & dried out---everything I've used to try
to soften the old glue also softens the plexi & leaves it with an
orange-peel finish. I have several 12" sq pieces, the center will
finally come once you get out there, but the edges are no-luck.

Thanks in advance

Jerry

[Orval Fairbairn]

In article >,
jerry wass > wrote:

> Anybody had any experience Peeling Protective Paper from
> Plexiglass??---When it's old & dried out---everything I've used to try
> to soften the old glue also softens the plexi & leaves it with an
> orange-peel finish. I have several 12" sq pieces, the center will
> finally come once you get out there, but the edges are no-luck.
>
> Thanks in advance
>
> Jerry

Try either denatured alcohol or rubbing alcohol. They will soften the
adhesive and will not harm the plexiglass.

--
Remve "_" from email to reply to me personally.

[Morgans]

"jerry wass" > wrote in message
...
> Anybody had any experience Peeling Protective Paper from
> Plexiglass??---When it's old & dried out---everything I've used to try
> to soften the old glue also softens the plexi & leaves it with an
> orange-peel finish. I have several 12" sq pieces, the center will
> finally come once you get out there, but the edges are no-luck.
>
> Thanks in advance

Oh, you poor sole! BTDT !!!

The only thing I have had any luck with, is getting a beer or three, putting
some music on, and getting ready to have lots of patience. If you have more
money than time, get a new piece.

Some very hot water and a big squirt of liquid dishwashing detergent may
help to loosen the bonds a little, but expect no miracles.

I have never tried cigarette lighter fluid on plexi. Does it mess with the
finish? That is always my solution to weaken old glue. Also "goof off"
glue remover may help, but I have never tried it on plexi. It is in the
painting section at hardware stores.
--
Jim in NC
--
Jim in NC

[Rip]

jerry wass wrote:

> Anybody had any experience Peeling Protective Paper from
> Plexiglass??---When it's old & dried out---everything I've used to try
> to soften the old glue also softens the plexi & leaves it with an
> orange-peel finish. I have several 12" sq pieces, the center will
> finally come once you get out there, but the edges are no-luck.
>
> Thanks in advance
>
> Jerry
Kerosene

[Ken Moffett]

Orval Fairbairn > wrote in news:o_r_fairbairn-
:

> In article >,
> jerry wass > wrote:
>
>> Anybody had any experience Peeling Protective Paper from
>> Plexiglass??---When it's old & dried out---everything I've used to try
>> to soften the old glue also softens the plexi & leaves it with an
>> orange-peel finish. I have several 12" sq pieces, the center will
>> finally come once you get out there, but the edges are no-luck.
>>
>> Thanks in advance
>>
>> Jerry
>
> Try either denatured alcohol or rubbing alcohol. They will soften the
> adhesive and will not harm the plexiglass.
>

Do not use denatured alcohal to soak off paper from Plexiglas. I've had it
craze very badly from exposure to alchol. I had a Plexiglass cylinder that
some one filled with ethonal, and in a short time it fractured all over and
fell apart.

[Morgans]

"Ken Moffett" > wrote

> Do not use denatured alcohal to soak off paper from Plexiglas. I've had it
> craze very badly from exposure to alchol. I had a Plexiglass cylinder that
> some one filled with ethonal, and in a short time it fractured all over
and
> fell apart.

Rubbing alcohol is methanol. Big difference from ethanol. That said, I
have no idea if methanol will harm plexi.
--
Jim in NC

[[email protected]]

> Do not use denatured alcohal to soak off paper from Plexiglas. I've had it
> craze very badly from exposure to alchol. I had a Plexiglass cylinder that
> some one filled with ethonal, and in a short time it fractured all over
and
> fell apart.


Rubbing alcohol is methanol. Big difference from ethanol. That said,
I
have no idea if methanol will harm plexi.
++++++++++++++++++++++

Also "denatured" alcohol at the local hardware store can be denatured
with just about anything of which the BATF approves - like acetone,
toluene, and other solvents. Makes for some costly surprises if you
don't test first..........
====================
Leon McAtee

[Ron Webb]

>Anybody had any experience Peeling Protective Paper from
> Plexiglass


If you're really serious, try this stuff --> www.dsr5.com
It's designed for what you are doing.

[Jerry]

Most rubbing alcohol is isopropyl alcohol but it can also be denatured
alcohol (ethanol with some bitter substance added to decrease the chances of
it being drunk). I am not aware of any rubbing alcohol having methanol.
Methanol is very toxic - causes blindness and death. Methanol is commonly
used as an antifreeze in windshield washer fluid (note the poison labels).

Jerry in NC

"Morgans" > wrote in message
...
>
> "Ken Moffett" > wrote
>
>> Do not use denatured alcohal to soak off paper from Plexiglas. I've had
>> it
>> craze very badly from exposure to alchol. I had a Plexiglass cylinder
>> that
>> some one filled with ethonal, and in a short time it fractured all over
> and
>> fell apart.
>
> Rubbing alcohol is methanol. Big difference from ethanol. That said, I
> have no idea if methanol will harm plexi.
> --
> Jim in NC
>

[flybynightkarmarepair]

Ron Webb wrote:
> >Anybody had any experience Peeling Protective Paper from
> > Plexiglass
>
>
> If you're really serious, try this stuff --> www.dsr5.com
> It's designed for what you are doing.

It looks like one of the citrus based terpenes; d-Limonene or the
like.

Other stuff worth trying "Citra-Solve". Basically anything that says
it's flammable and smells like lemons.

[Smitty Two]

In article >,
jerry wass > wrote:

> Anybody had any experience Peeling Protective Paper from
> Plexiglass??---When it's old & dried out---everything I've used to try
> to soften the old glue also softens the plexi & leaves it with an
> orange-peel finish. I have several 12" sq pieces, the center will
> finally come once you get out there, but the edges are no-luck.
>
> Thanks in advance
>
> Jerry

I'll have to agree with those who advise tossing it and buying new.
Acrylic is cheaper than dirt compared to the time and frustration that
you're facing by trying to peel the paper. You don't say how thick it
is, but McMaster sells a square foot of the 1/4" (0.236, actually) for
$5.00.

Thermoplastics are attacked by all sorts of things; definitely including
"rubbing" alcohol, which, as someone else said, is isopropyl. I once
destroyed $10,000 worth of surgical accessory instruments with a few
drops of cyanoacrylate (super glue) that I cleverly used as an
anti-rotation solution on a luer lock fitting mounted to a plastic (ABS,
in that case) panel. Of course, it took a week for the things to
disintegrate, so they were already in the customer's hands. The damage
was temporarily disguised by the self-adhesive foil labels that held the
fragments in place as they fell apart.

[Jim]

Your lucky these are small pieces, the only method I have used that was
successful was soaking in cold water for several days to a week or more.
This will break down cellulose which can then be rolled off with the
palm of your hand (kind of like rolling a buger between your fingers).
Yes the adhesive will come off at the same time.

"jerry wass" > wrote in message
...
> Anybody had any experience Peeling Protective Paper from >
Plexiglass??---When it's old & dried out---everything I've used to try
> to soften the old glue also softens the plexi & leaves it with an
> orange-peel finish. I have several 12" sq pieces, the center will
> finally come once you get out there, but the edges are no-luck.
>
> Thanks in advance
>
> Jerry

[[email protected]]

> of the 1/4" (0.236, actually) for

Well, 6mm actually:)

[Smitty Two]

In article om>,
wrote:

> > of the 1/4" (0.236, actually) for
>
> Well, 6mm actually:)

Hey, if it's 12" x 12", it can't be 6 mm thick <smiley emoticon if you
didn't infer it already.> Americans despise the metric system, because
it's based on logic, and it's too easy to work with.

I bought a pallet load of acrylic a few years ago, 4' x 8' sheets, in
nominal 1/4" and 1/2" thicknesses. I spent a week cutting it up into
pieces that were supposed to fit together, first blanking on the table
saw with the fancy plastic cutting blade, and then routing to finished
size with radiused edges. Then I found out that roughly half of the 1/4"
stuff was really 0.250, and the rest was 0.236.

[jerry wass]

Thanks to one & all for the most informative inputs----My pieces
apparently weren't too bad, after sponging the paper with 70% Isopropyl
Alcohol-(rubbing),[ 'cause I had it in the house] IT ALLOWED THE paper
and glue to roll, peel, off together. (like a BIG Booger, Bubba) I'll
see how the plastic survives & report any unfavorable transformations in
the quality of the Perspex.

Jerry



Jim wrote:
> Your lucky these are small pieces, the only method I have used that was
> successful was soaking in cold water for several days to a week or more.
> This will break down cellulose which can then be rolled off with the
> palm of your hand (kind of like rolling a buger between your fingers).
> Yes the adhesive will come off at the same time.
>
> "jerry wass" > wrote in message
> ...
>
>>Anybody had any experience Peeling Protective Paper from >
>
> Plexiglass??---When it's old & dried out---everything I've used to try
>
>>to soften the old glue also softens the plexi & leaves it with an
>>orange-peel finish. I have several 12" sq pieces, the center will
>>finally come once you get out there, but the edges are no-luck.
>>
>>Thanks in advance
>>
>>Jerry
>
>
>

[[email protected]]

Jerry wrote:
> Most rubbing alcohol is isopropyl alcohol but it can also be denatured
> alcohol (ethanol with some bitter substance added to decrease the chances of
> it being drunk). I am not aware of any rubbing alcohol having methanol.
> Methanol is very toxic - causes blindness and death. Methanol is commonly
> used as an antifreeze in windshield washer fluid (note the poison labels).
>

Unfortunately the additives used to denature ethanol are
not merely bitter, they are toxic, typically methanol,
or ketones. At one time sulphuric acid was used.

Ethanol denatured with methanol is sometimes still used as
rubbing alcohol. I have some at home. (google for 'surgical spirits')

But you are right, typical rubbing alcohol is 70% isopropynol
with the balance being water.

--

FF

[Scott Rodriguez]

Goo Gone. Takes time but will work without damage.

[daniel peterman]

Use Mineral spirits. Make up a little tray out of an old picture frame
fill with mineral spirits. Place plexi in there and cover with another
piece of polyethethelene to reduce evaporation. Should soften enough to
peel the paper off.
If that doesn't work blast it with a pressure washer

[pbc76049]

Why haven't any of you guys read the DIRECTIONS on
how to remove the old stuff. Pop it in the oven, warm it to about 160F
and it comes off slick as snot. Forget solvents, water or any of that
other crap, just check the manufacturers recommendations.

Oh Yeah, I mold Acrylic for a living.

Scott.
www.spektrproducts.com

[Ron Webb]

In my case, it's the windshield on my Adventurer kit. You got an oven that
big?



"pbc76049" > wrote in message
...
> Why haven't any of you guys read the DIRECTIONS on
> how to remove the old stuff. Pop it in the oven, warm it to about 160F
> and it comes off slick as snot. Forget solvents, water or any of that
> other crap, just check the manufacturers recommendations.
>
> Oh Yeah, I mold Acrylic for a living.
>
> Scott.
> www.spektrproducts.com
>

"pbc76049" > wrote in message
...
> Why haven't any of you guys read the DIRECTIONS on
> how to remove the old stuff. Pop it in the oven, warm it to about 160F
> and it comes off slick as snot. Forget solvents, water or any of that
> other crap, just check the manufacturers recommendations.
>
> Oh Yeah, I mold Acrylic for a living.

Gee Scott, have a bad morning?

As I recall, the original poster does not have the instructions from the
manufacture (the paper is old, faded, and dried on), let alone an oven that
large.

[pbc76049]

Yeah I had a bad morning.....

Our underage teenage neighbors boinking in our yard at night
makes for great breakfast conversations with her parents.
Thank God I don't have to deal with the fallout............

On to the plastic ......

Take a heat gun and warm the plastic locally to about 150ish.
This will remelt the glue holding the paper to the plastic and
leave you with squeaky clean plastic to work with. The glue used
is a low temp thermoset not a solvent based glue so liquids really
just get in the way and get sucked into the sheet to crreate problems later.
Acrylic doesn't get imprintable until 225 with pressure and won't move
until around
250 if forced so you won't have any problems peeling it off. Don't
worry about this temp inducing any residual stresses in the plastic,
I've done this a bunch when I'm working with some old crappy paper sheeted
material and it always comes off perfectly when reheated a bit..........

Hope that sounded a bit better......

Scott.



> wrote in message news:JEkuf.2799$z45.2262@trnddc02...
>
> "pbc76049" > wrote in message
> ...
>> Why haven't any of you guys read the DIRECTIONS on
>> how to remove the old stuff. Pop it in the oven, warm it to about 160F
>> and it comes off slick as snot. Forget solvents, water or any of that
>> other crap, just check the manufacturers recommendations.
>>
>> Oh Yeah, I mold Acrylic for a living.
>
> Gee Scott, have a bad morning?
>
> As I recall, the original poster does not have the instructions from the
> manufacture (the paper is old, faded, and dried on), let alone an oven
> that
> large.
>
>
>
>

[Montblack]

("pbc76049" wrote)
> Our underage teenage neighbors boinking in our yard at night makes for
> great breakfast conversations with her parents. Thank God I don't have to
> deal with the fallout............


Garden hose? Sprinkler system set to manual? Bucket of cold water?


Montblack

"pbc76049" > wrote in message
...
> Yeah I had a bad morning.....
>
> Our underage teenage neighbors boinking in our yard at night
> makes for great breakfast conversations with her parents.
> Thank God I don't have to deal with the fallout............
>
> On to the plastic ......
>
> Take a heat gun and warm the plastic locally to about 150ish.
> This will remelt the glue holding the paper to the plastic and
> leave you with squeaky clean plastic to work with. The glue used
> is a low temp thermoset not a solvent based glue so liquids really
> just get in the way and get sucked into the sheet to crreate problems
later.
> Acrylic doesn't get imprintable until 225 with pressure and won't move
> until around
> 250 if forced so you won't have any problems peeling it off. Don't
> worry about this temp inducing any residual stresses in the plastic,
> I've done this a bunch when I'm working with some old crappy paper sheeted
> material and it always comes off perfectly when reheated a bit..........
>


> Hope that sounded a bit better......

Much . . . Thanks!

[Jim Carriere]

Montblack wrote:
> ("pbc76049" wrote)
>> Our underage teenage neighbors boinking in our yard at night makes for
>> great breakfast conversations with her parents. Thank God I don't have
>> to deal with the fallout............
>
>
> Garden hose? Sprinkler system set to manual? Bucket of cold water?

Can of silly string? String of M80s? Parachute flare?

[Cy Galley]

How about using a hair dryer?


> wrote in message news:JEkuf.2799$z45.2262@trnddc02...
>
> "pbc76049" > wrote in message
> ...
>> Why haven't any of you guys read the DIRECTIONS on
>> how to remove the old stuff. Pop it in the oven, warm it to about 160F
>> and it comes off slick as snot. Forget solvents, water or any of that
>> other crap, just check the manufacturers recommendations.
>>
>> Oh Yeah, I mold Acrylic for a living.
>
> Gee Scott, have a bad morning?
>
> As I recall, the original poster does not have the instructions from the
> manufacture (the paper is old, faded, and dried on), let alone an oven
> that
> large.
>
>
>
>

[Morgans]

"pbc76049" > wrote
>
> Take a heat gun and warm the plastic locally to about 150ish.
> This will remelt the glue holding the paper to the plastic and
> leave you with squeaky clean plastic to work with. The glue used
> is a low temp thermoset not a solvent based glue so liquids really
> just get in the way and get sucked into the sheet to crreate problems
> later.
> Hope that sounded a bit better......

Much better, no doubt, and thanks for the info. I never had even considered
heat. I just hope this tidbit stays in my forgetful brain, until (not if,
but when) I need to remove some of that hateful old paper again.
--
Jim in NC

"pbc76049" > wrote in message
...
> Yeah I had a bad morning.....
>
> Our underage teenage neighbors boinking in our yard at night

You never had those problems in Sedro Woolley did you?

[pbc76049]

Nope, even though it was Mount Vernon...
you sound a lot like Larry...
Scott.
> wro
te in message news:1chvf.20456$If.7242@trnddc05...
>
> "pbc76049" > wrote in message
> ...
>> Yeah I had a bad morning.....
>>
>> Our underage teenage neighbors boinking in our yard at night
>
> You never had those problems in Sedro Woolley did you?
>
>

[Ernest Christley]

Jim Carriere wrote:
> Montblack wrote:
>
>> ("pbc76049" wrote)
>>
>>> Our underage teenage neighbors boinking in our yard at night makes
>>> for great breakfast conversations with her parents. Thank God I don't
>>> have to deal with the fallout............
>>
>>
>>
>> Garden hose? Sprinkler system set to manual? Bucket of cold water?
>
>
> Can of silly string? String of M80s? Parachute flare?

Video camera? Internet connection?

("Heh Joe! Look what your daughter's doin' on this here in-tar-net!
Whar'd she larn that from?")

--
This is by far the hardest lesson about freedom. It goes against
instinct, and morality, to just sit back and watch people make
mistakes. We want to help them, which means control them and their
decisions, but in doing so we actually hurt them (and ourselves)."