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How much does zinc plating cost

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Q. The cost of Zn plating is measured based on the component weight.But for powder coating cost is based on the area of component to be coated. Why is it so?

Rakesh Mahendiran
engineer trainee - Nasik, Maharashtra, India
February 5, 2009

A. Reason 1 is that the powder coat part lends itself to calculating the area.
Reason 2 is that the plated parts are not always easy to calculate areas of complex parts, so management figured out that they could make money by using weight. This overcharged some customers and undercharged some, but on average, the plater made money. If he did not, he just raised the price.

James Watts
- Navarre, Florida
February 7, 2009

July 16, 2009

Q. Hi James,

Do you have any idea how to estimate the plating price per Kg? Do you have any guidance to help me?

I am going to discuss/negotiate my plater price, but due to the fact that I never work at a plating company, I have a difficulties to estimate the price.

What I am going to negotiate to our supplier is plating price per Kg for Zinc plating, Zinc-iron plating, Zinc-Nickel plating and chromate conversion coating.

Thank you so much for your advice.

Best Regards,

Reynald Sukin
- Batam

? Hi, Reynald. What cost do you charge per Kg for your electrical and electronic components? It would help us determine the practicality and appropriateness of estimating the finishing costs per Kg :-)

Seriously, the idea that plating cost can be determined per kg is probably flawed. But good luck.


Ted Mooney,
Ted Mooney, P.E.
Striving to live Aloha - Pine Beach, New Jersey
July 16, 2009

February 6, 2010

Q. In a few days time, I shall be negotiating a tube business that involves zinc electroplating as final finish

Typical size of tube (OD x Length) = 50 mm x 8 M
Coating required = 100 gm/Sq M
Inside tube coating is not critical.

What is thumb rule to estimate an approx. coating cost by weight or by size?


Mahalingam Chetty
Factory manager - Chennai, India

Multiple threads merged: please forgive chronology errors :-)

Zinc-nickel plating cost?

Q. Dear sir,
how can we know how much metal is deposited in Zn-Ni process when efficiency is 60%? Sir actually I want to know the costing of zn-ni alloy per kg or per sq. feet

Thanks & Regards

Ashok Gupta
plating shop - India
September 23, 2010

A. Hi, Ashok

I believe that Zn-Ni alloy is deposited in the same thickness range as plain zinc plating, i.e., from a minimum satisfactory thickness of not much under .0002" to a practical maximum of about .0006". Proper plating cannot be costed on a per kilogram or per square foot basis, but requires a study of such factors as condition of the base steel, necessary cleaning and activation, required thickness of deposit, and chromate post treatment. Generally, unless you already have significant experience in estimating the cost, you are limited to getting several quotes. But it is good that you are considering "design for plating".

For a general feel though, pending correction by a plating shop, I'd say it will be more costly than zinc plating, less costly than nickel plating, and in the same general range as nickel-cobalt or nickel-iron plating.


Ted Mooney,
Ted Mooney, P.E.
Striving to live Aloha - Pine Beach, New Jersey
September 2010

July 19, 2018

A. Interesting comparison on Zn-Ni and various finishes … the costs can vary very widely, from 2x more than the black oiled phosphate to 10x more than black oiled phosphate..

Just adding a thin plating to any metal is the start of a corrosion protection, it usually needs to be passivated and sealed afterwards. And those additional costs, as you see, can alter the total costs widely.

Jane D. Stanton
- Vienna, (The Coffee City), Austria

Ed. note: Other interesting threads on cost estimating for plating include topic 25603, topic 42981, and topic 54353

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