On 1/20/2015 8:22 AM, email@example.com wrote:
Brand matters little. In years past, they were all ketone based, MEK,
and worked pretty much that same. New air standards have changed the
formula and most have soy methyl esters, ethylene glycol and stuff but
most are similar. If the OP used a can that was a few years old, the
formula has changed.
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! ;)
replying to Robert Green, John wrote:
It actually works. Soak paper with lacquer thinner
Allow to soak for 10 minutes then test peel. If not lifting, add another wipe of
thinner. When paper lifts, peel back slowly and repeat till the end. Wipe off
excess glue with thinner rag as you go....thank you so much...
I'm not gonna dispute John's post, as I do not know what they are
doing, now. But, waay back, we had some really old Plexiglass w/ some
kinda brn paper protecting the surface.
Couldn't get it off. Tried everything and we hadda buncha choices.
This at a govt lab that could get any solvent on the planet. We
finally settled on Stodard's (mineral) solvent.
Still, this was many yrs ago. The last sheet of Plexiglass I bought
had some sorta "clear" covering. Heck, it's peeling off on its own.
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