Richard Casady wrote:
On Thu, 18 Jun 2009 08:55:57 -0700 (PDT), Frogwatch
wrote:

We electron beam evaporated chromium onto glass because
this made a beautiful surface. Then we electroplated the gold onto
that expecting the gold to peel off, WRONG. It turns out that Chrome
is used as an adhesion layer for gold.

Last I heard, car bumpers were chrome on nickel on copper. So called
triple plate is fairly resistent to peeling, the reason the go to the
trouble.

Casady


Last I heard, car bumpers were paint on plastic.




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"John H" wrote in message
...

Please note that Interstate 90 will be closed this weekend across
South Dakota. This closure will allow the Federal Government free
access to haul a 200 ton piece of coal to Mt. Rushmore so that
President Obama can be added to the Presidents on the monument.
--
John H

--

John Herring, rec.boat's resident racist and stinking heap of crap.