Plexiglass protective paper

Orval Fairbairn wrote in news_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.

"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

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

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

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

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