Author Topic: chroming costs  (Read 3618 times)

Offline MikeN

  • A's Best Friend
  • ***
  • Join Date: Mar 2009
  • Posts: 220
  • Karma: 0
Re: chroming costs
« Reply #15 on: 19.06. 2010 22:41 »
If your laying a bike up for a period. Is it best to keep the plating waxed or oiled ?

Offline anjimehra

  • Valued Contributor
  • ****
  • Join Date: Feb 2009
  • Posts: 343
  • Karma: 0
    • venture on wheels
Re: chroming costs
« Reply #16 on: 20.06. 2010 08:13 »
Chroming in India is mostly a 2 coat process which involves an initial coat of nickel followed by a flash of Chrome. Not very long lasting especially if you are near the sea

Offline BSA_54A10

  • Wise & Enlightened
  • *
  • Join Date: May 2008
  • Posts: 2017
  • Karma: 32
    • BSA National
Re: chroming costs
« Reply #17 on: 20.06. 2010 12:15 »
In a top quality plate the tanks first gets a copper sulfate treatment, which yields a 100% copper cover ( no Faradya's cage effect )
Next it gets an electric copper followed by a polish. This breaks up the grain structure which prevents excessive dendritic deposition of the nickel.
If you break through with the copper then you do it again, and again, and again ( get the picture).
Once you are happy with the surface then you can add the nickel.
The number and depth of each coat will have a major effect on the final outcome.
Modern plating uses chemical "brighteners & flatteners" both of which yields a some what thin looking plate.
Quality plating will polish after each thick nickel and finish off with a flash chrome followed by a thicker chrome.

Usually only places that specialise in restorations or HD's will do this type of plating.
It ain't cheap as there is a lot of labour in the process.
The center bumper of the Shadow was over $ 1000, each end was around $ 1500 and the over riders $ 365 each.
The good bit is that they will last for another 40 years out in the weather ( provided that I give them an occasional wax)

Bike Beesa