rotten news relay - sci.polymers - Re: Polyurethane remover?

Subject: Re: Polyurethane remover?
From: motherofninekids@gmail.com
Newsgroups: sci.polymers
Date: Sun, 26 Apr 2020 13:32 UTC
References: 1 2 3 4

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Newsgroups: sci.polymers
Date: Sun, 26 Apr 2020 06:32:29 -0700 (PDT)
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Subject: Re: Polyurethane remover?
From: motherofninekids@gmail.com
Injection-Date: Sun, 26 Apr 2020 13:32:30 +0000
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On Friday, December 27, 2002 at 9:15:30 AM UTC-6, JBJohnson wrote:
> > The poly urethane coating is most likely a crosslinked system. This means
> > > that it is not soluble in ANY solvents. Many solvents will attack
> > > They are plastic lenses (polycarbonate?). I don't
> > > > solvent I can use to remove the overspray without
> >
> > Thanks for the inputs. I had some partial success with a
> > warm vinegar soak (no visible effect) followed by
> > an ice water ultrasonic bath (bigger dots gone).
> >
> At the suggestion of someone who paints upon
> plastics, I soaked the glasses overnite in isopropyl
> alcohol (50% is what I found at the store) and
> next morning they cleaned up like magic. Guess it
> loosened up the attachment just enuf.
> Thanks!
> Jeff

I splattered my plastic lens glasses with polyurethane varnish and a couple of days later soaked them overnight in regular over the counter undiluted isopropyl alcohol (70%) and they cleaned off beautifully the next morning. Thank you so much!

Subject	Author
Re: Polyurethane remover?	motherofninekids

You will have good luck and overcome many hardships.

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