On 2015-01-21, Unquestionably Confused wrote:

Exactly! Buy some damn lacquer thinner, try it on a small area and see
what happens. It either works or it doesn't. If it crazes the acrylic
sheet you then know that it doesn't work. If it doesn't craze it and
doesn't remove the paper are you any the worse off?

I usta work at a US govt lab. We hadda lotta plexiglass and some was
pretty old. The old paper backing in those days (80s) was near
impossible to get off, after a certain age. We had a lotta solvents,
etc, and tried 'em all. Stoddard's solvent (wht spirits) worked the
best, but still required mucho elbo grease.

Even worse!! ....plain ol' masking tape on stainless steel, baked on
for 2 mos in the CA Summer sun. Sorry! No solvents work. Jes a
lotta guys with razor blade scrappers, also in the hot CA sun.

I've got some plexiglass from True Value. Now, seems to be covered
with a see-thru plastic film cover. Comes right off on a piece that's
2 yrs old. Thank-you, whoever you are!

nb