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Re: [Roadsters] Bumper

To: datsun-roadsters@autox.team.net
Subject: Re: [Roadsters] Bumper
From: Jim Gammon <gtpjimgammon@yahoo.com>
Date: Fri, 28 Mar 2008 08:03:10 -0700 (PDT)
Thank you all. 
   
  Jim

Keith0alan@aol.com wrote:
        In a message dated 3/27/2008 7:31:46 PM Pacific Daylight Time, 
aultgc@att.net writes:
  Jim,

"Rechroming" is a three-step process (after the original finish is 
stripped):

1.  A copper plating, to fill imperfections.   (May require multiple 
applications with buffing in between.)
2.  A nickel plating.
3.  The final chrome plating.

The copper is also probably needed to bond to the steel, an dthe nickel to 
bond to the copper.  But, I'm not a chemist so I don't know for sure.

So, if you send your bumper to a reputable chrome plater, you will get the 
pitting, etc., corrected as part of the process.  It is possible to 
re-chrome without doing a careful job of copper plating and buffing out 
imperfections, but the basic steps for correcting such imperfections is 
inherent in the process.

Gary Ault

  
    Watch out for chromers that want to grind out the pits. Your parts will end 
up paper thin. You are better off with little dimples in the chrome rather than 
your bumper ground down to nothing. The key to getting chrome you like is to 
talk to the plater and make sure you both understand what is expected. If you 
throw your part on the counter, say chrome, and walk out the door there is no 
telling what you will end up with.
   
  Copper is very expensive, as is labor. If you want the pits filled with 
copper this involves plating and buffing several times. A lot of places won't 
do it and the ones that do charge appropriately, usually a lot. That's why they 
like to grind the pits out, fast and cheap. 
   
  keith




    
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