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Nickel plated as alternative for zinc phosphate..
5

Nickel plated as alternative for zinc phosphate..

Nickel plated as alternative for zinc phosphate..

(OP)
Hi Guys!

Would like to seek your advice on what are the properties and differences of this two plating Nickel plated and Zinc phosphate.

Thanks...

RE: Nickel plated as alternative for zinc phosphate..

2
Nickel plating is a high performance coating usually used for long-term wear resistance. Zinc phosphate is a low performance coating usually used as a primer to improve paint adhesion. The cost difference between the two is huge. These two surface treatments usually do not compete for the same applications.

RE: Nickel plated as alternative for zinc phosphate..

(OP)
Thanks CoryPad for sharing your knowledge.
Is there any sites where I can look for material properties/tables for comparison of these two?
My supplier proposed to used nickel plating instead of zincphosphate I think it would support my explanation if I can show him differences of the two since I'm not familiar of its material properties.
By the way it will be applied to shafts with 5-7mm dia. and 100-140mm length.



RE: Nickel plated as alternative for zinc phosphate..

There are two basic types of nickel plating- bright nickel and electroless nickel. Zinc or manganese phosphate are conversion coatings. Either type of nickel plating will provide excellent corrosion protection, but zinc/manganese phosphate coatings do not provide much corrosion protection. Zn/Mn phosphate are very inexpensive processes and are readily adaptable with high production rates. Bright nickel is a bit less expensive than electroless nickel, but electroless nickel has the desirable characteristic of providing a very uniform coating thickness on the substrate surface, which is critical for many engineering applications.

For the application described in the last post, I would estimate that electroless nickel could easily cost 30x more per part vs zinc phosphate.

RE: Nickel plated as alternative for zinc phosphate..

Check Henkel and Chemetall for information regarding zinc phosphate.

Check MacDermid and Enthone for information regarding nickel plating.

RE: Nickel plated as alternative for zinc phosphate..

2
You can find a lot of useful general info at http://www.pfonline.com/zones/plate/

There are a wide variety of both zinc phosphate and nickel plating products. Without knowing anything about your application there is no way to make a recommendation.

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