[DeTomaso] Wilkinson "silver-zinc" header coating?????

[Doug Braun]

Steve called it silver colored zinc not silver and zinc so my impression
was that the plating is standard silver colored zinc chromate like that use
on hardware store fasteners as opposed to the gold colored zinc di-chromate
which is also used on hardware store fasteners.  Both of these platings are
somewhat effective at preventing rusting of the underlying steel but I
wouldn't trust it in a header application.  Regardless, Steve said that the
plating is suitable for having ceramic coating placed over the top of it
and I would recommend it.  If you want to be absolutely sure about the
plating composition though, you'll need to contact Steve.

Doug Braun
blue 73L #5505

On Mon, Mar 5, 2012 at 10:06 AM, Larry Finch <fresnofinches at aol.com> wrote:

> Okay, I'll bite. Per Doug's talk with Steve, Wilkinson lists his new steel
> headers as being "silver-zinc" plated.
>
> Just what is "silver-zinc" plating.  Does he mean 'bright  zinc' plating
> or is "silver-zinc" a difference process of its own?  Isn't a zinc
> plating/coating just a form of galvanized?  (hot dip, cold dip, etc)
>
> Just what can be expected from a set of headers, appearance wise, that
> comes with "silver-zinc" plating.
>
> Likewise, are there any heat control properties such as we expect from a
> good ceramic coating? (Quick cool-down, better scavenging)
>
> Is this plating what other header makers are now doing, or is this
> "silver-zinc" something new that Steve Wilkinson has come up with?
>
> Larry
>
>