[vcf-midatlantic] rubber rejuvenation

[Jason Perkins]

I have a can of it, it works great!

https://www.idparts.com/wurth-rubber-care-8857000012-p-788.html


On Sat, Oct 17, 2020 at 10:27 AM Andy Meyer via vcf-midatlantic <
vcf-midatlantic at lists.vcfed.org> wrote:

> Gummi-Pflege
>
> literally "rubber care"
>
>
> On Fri, Oct 16, 2020, 6:43 PM corey cohen via vcf-midatlantic <
> vcf-midatlantic at lists.vcfed.org> wrote:
>
> > There is a special spray that is made for printer platen/rollers.  It
> does
> > a pretty good job of putting them back into working order.  I’ve use it
> on
> > multiple TI silent ASR restorations, the machines are circa 1973/74.
> >
> > There is rubber treatment that BMW makes for their convertibles that
> helps
> > with rubber seals around convertible tops and windows.  I forget exactly
> > what is it called but it’s something like “Gummipledge”.
> >
> > Cheers,
> > Corey
> >
> > corey cohen
> > uǝɥoɔ ʎǝɹoɔ
> > Sent from my iPhone
> >
> > > On Oct 16, 2020, at 8:55 AM, Jason Perkins via vcf-midatlantic <
> > vcf-midatlantic at lists.vcfed.org> wrote:
> > >
> > > My experience is that once the plasticizer in the rubber "goes off"
> and
> > the
> > > whole thing turns to goo, there's not much that can be done.
> > >
> > > I've tried boiling rubber drive belts... it helps a little but not
> enough
> > > for them to work properly.
> > > I've got automotive "belt dressing" that makes the belt kind of sticky,
> > it
> > > can help a little but on small belt drives doesn't do much.
> > > I've soaked rubber gaskets in leather treatment oils, which swells them
> > up
> > > somewhat, but not bad to their original shape. It does make them more
> > > flexible.
> > >
> > > If you had rubber that has turned hard as a rock, I'd wonder if it's
> > > possible to absorb new plasticizer into it? What I've seen as the
> rubber
> > > "dries out" it also shrinks, distors, and cracks. Making it soft again
> > > won't fix this.
> > >
> > > If the rubber is still the correct shape, but is gooey, I wonder if
> > there's
> > > a chemical process that could pull the extra plasticizer out?
> > >
> > > I'd love to see the process how these rollers were made in the first
> > place.
> > > I imagine it's similar to what the modern rubber roller rebuild places
> > do.
> > >
> > > Thanks,
> > >
> > >> On Thu, Oct 15, 2020 at 2:29 PM Jeffrey Jonas via vcf-midatlantic <
> > >> vcf-midatlantic at lists.vcfed.org> wrote:
> > >>
> > >> Many thanks to everyone for their replies.
> > >> Degnan is right: I never specified my situation.
> > >> I have many rubber items that need restoration:
> > >> tape drive rollers, printer/platen rollers,
> > >> rubber stampers, sandal soles, etc.
> > >>
> > >> The rubber feet on equipment is the bane of my existence :-(
> > >> I usually just replace them.
> > >> The most annoying failure mode is when they LIQUIFY
> > >> and slime everything UNDER IT :-0
> > >> Next worst: when just ONE is missing.
> > >>
> > >> -- Jeff Jonas
> > >>
> > >
> > >
> > > --
> > > Jason Perkins
> > > 313 355 0085
> >
>
-- 
Jason Perkins 313 355 0085 Sent from my iPhone