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.