Thanks for all the responses regarding painting the inside of a rechromed
bumper.
Mine were painted silver when I got them from the chroming shop. Guess I'll
just have to have them done again. POR 15 sounds like a good idea, But
rustoleum may work just as well for a car that rarely gets wet.....
Daryl Smith
----- Original Message -----
From: "peter harrison" <granvillecomputing@hotmail.com>
To: "Daryl Smith" <drlsmith@dccnet.com>; <keith0alan@aol.com>;
<tputland@charter.net>; <datsun-roadsters@autox.team.net>
Sent: Saturday, March 29, 2008 11:24 AM
Subject: RE: [Roadsters] Chrome processing--was Bumper
i always paint the inside with two coats of an appropriate colored
rustoleum - seems to work fine.
----------------------------------------
> From: drlsmith@dccnet.com
> To: Keith0alan@aol.com; tputland@charter.net;
> datsun-roadsters@autox.team.net
> Date: Sat, 29 Mar 2008 09:20:35 -0700
> Subject: Re: [Roadsters] Chrome processing--was Bumper
>
> I had my bumpers done about 12 years ago. I now have some rust starting to
> form on the back side of the bumpers.
> Do you coat the back side of the bumpers with POR 15 or similar when you
> first get them back from the platers?
>
> Daryl
>
>
> > tputland@charter.net writes:
> >
> >>From Keith: "Your parts will end up paper thin. "
> >
> > So.....
> >
> > I am a little unclear on this point. I under stand that the grinding
> > will
> > thin the metal. But doesn't the chroming process add (layers of metals)
> > to the
> > part, making it thicker (and heavier)?
> >
> > Is the thinning from grinding still an issue even with new metal being
> > added?
> >
> > (read the last line on my signature if you are un clear as to my mental
> > abilities!) ;-)
> >
> > Tim
> > Belleville, WI.
> > '70 SPL AND SRL
> > Still clueless but always learning
> >
> >
> >
> > They are removing steel, a structural material, and adding copper,
> > nickel
> > and chrome, a cosmetic coating. The amount of steel removed to get to
> > the
> > bottom
> > of the pits is a lot thicker than the amount of copper, nickel, and
> > chrome
> > you want to pay for. Good question though, in some applications, like
> > hydraulic cylinder rods, they will build them up with chrome and grind
> > them down to
> > size.
> >
> > keith
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