On Thursday, November 15, 2012 10:51:51 AM UTC-5, Robert Green wrote:
Yesterday I was about to toss all the Plexi scraps I have because the paper
backing is stuck on so tight it can't be peeled off. I decided to try
laquer thinner, assuming it was going to melt the plexiglass since they were
headed for the trash anyway.
I moistened a paper towel with it, place it on the paper backing and a few
minutes later it had softened the backing enough so that I could peel it
free (with a bit of work - the scraps are probably 25 years old).
The Plexiglas appears to be completely unharmed by the solvent, which really
surprised me. I thought would cloud it or melt it. I am now going to try
to figure out the best way to scale up the process to get the backing off
some very large sheets of 1/4" stuff. If anyone's interested I'll post the
brand of laquer thinner and the type of Plexiglas it's working on. I know I
have some Lexan scraps mixed in, so it may only work on certain types of
Plexi.
--
Bobby G.
I use "Quick 'n Easy" Specialty Adhesive Remover by AUTOTECH. This stuff is awesome. Just spray it on and let it soak in to the paper, then carefully peel it off. Wet a shop rag with the spray and wipe away the residual adhesive. It doesn't melt the plexiglass! Old deteriorated plexiglass with paper that's been sitting in the corner for a few years...no problem
http://www.autotechmfg.com/products.html
John.