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
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@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
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@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@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
Gummi-Pflege literally "rubber care" On Fri, Oct 16, 2020, 6:43 PM corey cohen via vcf-midatlantic < vcf-midatlantic@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@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@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
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@lists.vcfed.org> wrote:
Gummi-Pflege
literally "rubber care"
On Fri, Oct 16, 2020, 6:43 PM corey cohen via vcf-midatlantic < vcf-midatlantic@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@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@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
Yes but they're sooo good 🙂 On Sun, Oct 18, 2020, 6:32 PM Andrew Diller <dillera@gmail.com> wrote:
So I've been eating "Rubber Bears" all these years? Slightly gross.
-andy
On Oct 17, 2020, at 10:27 AM, Andy Meyer via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
Gummi-Pflege
literally "rubber care"
participants (5)
-
Andrew Diller -
Andy Meyer -
corey cohen -
Jason Perkins -
Jeffrey Jonas