RE: [DML] brake caliper painting
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RE: [DML] brake caliper painting



Cadmium plating (superior to Zinc) makes the caliper look better longer but
the real advantage comes from the fact that the piston bore is re-plated at
the same time. We only use re-plated calipers in our shop and feel that
painting is basically a waste of time unless you?re going to powder-coat
them which adds significantly to the cost and is strictly for a better and
longer lasting appearance. The other things that contribute to longevity are
stainless pistons and the use of Girling OEM seals and new bleeder screws.
Rubber compounding is a surprisingly complex technology and the original
Girling seals almost never crack or fail on Delorean?s. These calipers
always seem to fail from lack of fluid flushes and the absorption of water
over time. This causes the fluid to ?varnish? the bore and eventually to
corrode the chrome on the original pistons and subsequent binding of the
caliper. We offer cadmium plated calipers with stainless pistons and Girling
rubber for about the same cost as John (He has someone make his rubber
seals) but feel more comfortable with OEM rubber parts. We have been
rebuilding them, in house, for over fifteen years and I don?t recall a
single failure. You won?t ?have to mess with them for a long time?.
Shameless plug I know but I just can?t resist. I?m proud of the quality of
our calipers and actually enjoy rebuilding them. Strange but true :).


Rob Grady,


P.J.Grady Inc. 



From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of
Sent: Monday, April 14, 2008 12:12 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] brake caliper painting


Hi group,

My master cylinder needs replacement so I guess it is time to go through the
brakes again on my car. I previously installed stainless braided hoses and
my rotors and pads have plenty of life left. 

I think this time around with my brakes I am going to go all-out and get the
calipers cleaned up really well and painted or plated. However, I don't know
much about selecting a good paint or if plating is better. I knew Hervey
sells zinc-plated calipers. Are they worth the expense? I want something
that will hold up in the long run and look "restored". Those zinc calipers
sure look nice!

Do you just put a bolt in the bleeder hole and hose hole, then bring them in
to a bead-blasting shop and let them go at it? Any special precautions? What
is the best route - paint or plating? I don't want to have to mess with
these again for a long time.


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