Kevin & Kim wrote:

Just for everyone's "that's good to know" files, I sent a copy of the e-mail
(Aluminum Housings And Coatings) I sent yesterday to Armaloy to glean some
more details of their Rc98 coating.  I don't know what their CoF is to begin
with, but I'm wondering if their XADC coating - mated with ceramic seals
would be a bulletproof combination.   http://www.armoloy.com/are.html
Of course, this idea may also be like the $300 toaster.  Sure it may be the
last one I'll ever need to buy.  But, I may want to buy a different toaster
in the future, so a $30 toaster will do just fine for now.
Anyway, here's their response.

Dear Kevin,

Thanks for the email.

The XADC (diamond chrome) coating you mentioned doesn't impart a cutting
surface to the metal substrate, such as a self-sharpening material, which is
engineered to shear, might.  The diamond component of the bath is spherical,
not sharp.  In fact, XADC has a CoF about 20% lower than our TDC, which is
pretty low to begin with.

Also, with aluminum we would first need to lay down a thin coating of
electroless nickel on the part, as the XADC and TDC coatings don't adhere
particularly well to aluminum, but do adhere well to nickel, which itself
adheres well to aluminum.

I appreciate your correspondence.  Good luck with the project.

Best Regards,

Michael Bejbl
President
The Armoloy Corporation

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