[DeTomaso] Caliper color
jderyke at aol.com
jderyke at aol.com
Sun Oct 17 13:15:30 EDT 2021
My '72 had 4 silver calipers back in early '80. And cold-bloodedly, the issue with cadmium affected the mfg due to workers inhaling hot fumes from the electroplatng tanks, not the users. Finished assemblies are safe to handle unless they were used with asbestos pads and are dusty. There's a spray-can application that adds 'cold galvanize' which is the same zinc finish but not electroplated, and protects the iron surface the same way.
-----Original Message-----
From: Jeff Kimball <jgkrenton at comcast.net>
To: Jeff Detrich <jjdetrich at gmail.com>
Cc: detomaso at server.detomasolist.com; Rich Hoppe <richbhoppe at gmail.com>
Sent: Sun, Oct 17, 2021 9:58 am
Subject: Re: [DeTomaso] Caliper color
A little digging around the web indicates Girling used "Silver Cadmium" electroplating on calipers during this era. This has been changed to "Clear Zink" electroplating which is actually silver in color. This change was due to environmental issues with the Cadmium.
I sure one of the scientists on this list can provide a better description of the processes and differences.
Here's an interesting article on caliper plating by Raybestos
https://www.brakepartsinc.com/dam/jcr:6b698f68-b53d-4f91-804c-0b0a3103dece/Problems%20with%20Corrosion%20on%20Calipers.pdf
FYI
Jeff 2467
> On 10/17/2021 8:58 AM Jeff Detrich <jjdetrich at gmail.com> wrote:
>
>
> [image: image38MA23534035-0039.jpg]
> from a very low mileage unrestored car
>
> Jeff
> 6559
>
> On Sat, Oct 16, 2021 at 1:50 PM MICHAEL DREW via DeTomaso <
> detomaso at server.detomasolist.com> wrote:
>
> > Rich,
> >
> > They weren’t gold. They were ‘metal-colored’ but I don’t believe they were
> > bare metal.
> >
> > Mike
> >
> > Sent from my iPhone
> >
> > > On Oct 16, 2021, at 08:26, Rich Hoppe <richbhoppe at gmail.com> wrote:
> > >
> > >
> > > What color were the original calipers
> > > Wilkenson replacements are gold.
> > > Paint them black or gold
> > > Sent from my iPhone
> > > _______________________________________________
> > >
> > >
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> image38MA23534035-0039.jpg
> from a very low mileage unrestored car
> Jeff
> 6559
>
> On Sat, Oct 16, 2021 at 1:50 PM MICHAEL DREW via DeTomaso
> <[1]detomaso at server.detomasolist.com> wrote:
>
> Rich,
> They werenat gold. They were ametal-coloreda but I donat believe
> they were bare metal.
> Mike
> Sent from my iPhone
> > On Oct 16, 2021, at 08:26, Rich Hoppe <[2]richbhoppe at gmail.com>
> wrote:
> >
> > i>>?
> > What color were the original calipers
> > Wilkenson replacements are gold.
> > Paint them black or gold
> > Sent from my iPhone
> > _______________________________________________
> >
> >
> > Detomaso Email List is not managed by POCA
> > Posted emails must not exceed 1.5 Megabytes
> > DeTomaso mailing list
> > [3]DeTomaso at server.detomasolist.com
> > [4]http://server.detomasolist.com/mailman/listinfo/detomaso
> >
> > To manage your subscription (change email address, unsubscribe,
> etc.) use the links above.
> >
> > Members who post to this list grant license to the list to forward
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> archive or approve the archiving of list messages.
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>
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-------------- next part --------------
My '72 had 4 silver calipers back in early '80. And cold-bloodedly, the
issue with cadmium affected the mfg due to workers inhaling hot fumes
from the electroplatng tanks, not the users. Finished assemblies are
safe to handle unless they were used with asbestos pads and are dusty.
There's a spray-can application that adds 'cold galvanize' which is the
same zinc finish but not electroplated, and protects the iron surface
the same way.
-----Original Message-----
From: Jeff Kimball <jgkrenton at comcast.net>
To: Jeff Detrich <jjdetrich at gmail.com>
Cc: detomaso at server.detomasolist.com; Rich Hoppe <richbhoppe at gmail.com>
Sent: Sun, Oct 17, 2021 9:58 am
Subject: Re: [DeTomaso] Caliper color
A little digging around the web indicates Girling used "Silver Cadmium"
electroplating on calipers during this era. This has been changed to
"Clear Zink" electroplating which is actually silver in color. This
change was due to environmental issues with the Cadmium.
I sure one of the scientists on this list can provide a better
description of the processes and differences.
Here's an interesting article on caliper plating by Raybestos
[1]https://www.brakepartsinc.com/dam/jcr:6b698f68-b53d-4f91-804c-0b0a31
03dece/Problems%20with%20Corrosion%20on%20Calipers.pdf
FYI
Jeff 2467
> On 10/17/2021 8:58 AM Jeff Detrich <[2]jjdetrich at gmail.com> wrote:
>
>
> [image: image38MA23534035-0039.jpg]
> from a very low mileage unrestored car
>
> Jeff
> 6559
>
> On Sat, Oct 16, 2021 at 1:50 PM MICHAEL DREW via DeTomaso <
> [3]detomaso at server.detomasolist.com> wrote:
>
> > Rich,
> >
> > They werenat gold. They were ametal-coloreda but I donat believe
they were
> > bare metal.
> >
> > Mike
> >
> > Sent from my iPhone
> >
> > > On Oct 16, 2021, at 08:26, Rich Hoppe <[4]richbhoppe at gmail.com>
wrote:
> > >
> > > i>>?
> > > What color were the original calipers
> > > Wilkenson replacements are gold.
> > > Paint them black or gold
> > > Sent from my iPhone
> > > _______________________________________________
> > >
> > >
> > > Detomaso Email List is not managed by POCA
> > > Posted emails must not exceed 1.5 Megabytes
> > > DeTomaso mailing list
> > > [5]DeTomaso at server.detomasolist.com
> > > [6]http://server.detomasolist.com/mailman/listinfo/detomaso
> > >
> > > To manage your subscription (change email address, unsubscribe,
etc.)
> > use the links above.
> > >
> > > Members who post to this list grant license to the list to
forward any
> > message posted here to all past, current, or future members of the
list.
> > They also grant the list owner permission to maintain an archive or
approve
> > the archiving of list messages.
> >
> > _______________________________________________
> >
> >
> > Detomaso Email List is not managed by POCA
> > Posted emails must not exceed 1.5 Megabytes
> > DeTomaso mailing list
> > [7]DeTomaso at server.detomasolist.com
> > [8]http://server.detomasolist.com/mailman/listinfo/detomaso
> >
> > To manage your subscription (change email address, unsubscribe,
etc.) use
> > the links above.
> >
> > Members who post to this list grant license to the list to forward
any
> > message posted here to all past, current, or future members of the
list.
> > They also grant the list owner permission to maintain an archive or
approve
> > the archiving of list messages.
> image38MA23534035-0039.jpg
> from a very low mileage unrestored car
> Jeff
> 6559
>
> On Sat, Oct 16, 2021 at 1:50 PM MICHAEL DREW via DeTomaso
> <[1][9]detomaso at server.detomasolist.com> wrote:
>
> Rich,
> They werenat gold. They were ametal-coloreda but I donat believe
> they were bare metal.
> Mike
> Sent from my iPhone
> > On Oct 16, 2021, at 08:26, Rich Hoppe
<[2][10]richbhoppe at gmail.com>
> wrote:
> >
> > i>>?
> > What color were the original calipers
> > Wilkenson replacements are gold.
> > Paint them black or gold
> > Sent from my iPhone
> > _______________________________________________
> >
> >
> > Detomaso Email List is not managed by POCA
> > Posted emails must not exceed 1.5 Megabytes
> > DeTomaso mailing list
> > [3][11]DeTomaso at server.detomasolist.com
> >
[4][12]http://server.detomasolist.com/mailman/listinfo/detomaso
> >
> > To manage your subscription (change email address,
unsubscribe,
> etc.) use the links above.
> >
> > Members who post to this list grant license to the list to
forward
> any message posted here to all past, current, or future members
of
> the list. They also grant the list owner permission to maintain
an
> archive or approve the archiving of list messages.
> _______________________________________________
> Detomaso Email List is not managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> [5][13]DeTomaso at server.detomasolist.com
> [6][14]http://server.detomasolist.com/mailman/listinfo/detomaso
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of
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an
> archive or approve the archiving of list messages.
>
> References
>
> 1. mailto:[15]detomaso at server.detomasolist.com
> 2. mailto:[16]richbhoppe at gmail.com
> 3. mailto:[17]DeTomaso at server.detomasolist.com
> 4. [18]http://server.detomasolist.com/mailman/listinfo/detomaso
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> _______________________________________________
>
>
> Detomaso Email List is not managed by POCA
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_______________________________________________
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References
1. https://www.brakepartsinc.com/dam/jcr:6b698f68-b53d-4f91-804c-0b0a3103dece/Problems%20with%20Corrosion%20on%20Calipers.pdf
2. mailto:jjdetrich at gmail.com
3. mailto:detomaso at server.detomasolist.com
4. mailto:richbhoppe at gmail.com
5. mailto:DeTomaso at server.detomasolist.com
6. http://server.detomasolist.com/mailman/listinfo/detomaso
7. mailto:DeTomaso at server.detomasolist.com
8. http://server.detomasolist.com/mailman/listinfo/detomaso
9. mailto:detomaso at server.detomasolist.com
10. mailto:richbhoppe at gmail.com
11. mailto:DeTomaso at server.detomasolist.com
12. http://server.detomasolist.com/mailman/listinfo/detomaso
13. mailto:DeTomaso at server.detomasolist.com
14. http://server.detomasolist.com/mailman/listinfo/detomaso
15. mailto:detomaso at server.detomasolist.com
16. mailto:richbhoppe at gmail.com
17. mailto:DeTomaso at server.detomasolist.com
18. http://server.detomasolist.com/mailman/listinfo/detomaso
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