3M Gemeral Purpose Adhesive Cleaner PN 08984 available at NAPA.
Let it soak in and peel gently. Does not harm painted finishes.
http://www.napaonline.com/Search/Detail.aspx?R=MMM08984_0006436602#
On Wed, Jun 23, 2010 at 9:40 AM, Ron Horwitz <ronglue@yahoo.com> wrote:
> --- On Mon, 6/21/10, Pat Horne <pat@hornesystemstx.com> wrote:
>
> > From: Pat Horne <pat@hornesystemstx.com>
> >
> > Most of that kind of protective film is held on by static
> > charge, so I
> > wouldn't expect any adhesive to be present.
>
> Not exactly true. For modern electronics, yes. In the past for
> electronics, and still current for industrial and transportation
> applications, there is a cross-linked adhesive, typically acrylic, used.
> Adhesive starts out as a low tack removable, and the cross-linking helps to
> keep the adhesive on the protective film and prevent transfer to the
> protected good.
>
> Over time the two surfaces become more intimate, and the adhesive builds in
> strength. Therefore, the longer it's there, the harder it is to remove. My
> guess is that the cross-linking also boosted the chemical resistance, hence
> the reduced effect of solvent now.
>
> Heat to soften and letting solvent soak on the surface for a while are the
> best chances. Maybe a light sanding?
>
>
> Ron
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