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ted_yosem
Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
finishing.com -- The Home Page of the Finishing Industry

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Looking for the hardest, unscratchable finish for jewelry

RFQ: I am looking for someone to coat metal rings to the hardest finish possible.

I would like a diamond coating, it will work well with my marketing. It can't have nickel in it. I'd like a black and a gunmetal color with polished and matte finishes. Rings would be tungsten, titanium, and damascus stainless steel.

Wayne Beckley
- Boise, Idaho
October 22, 2024
    privately respond to this RFQ
Ed. note: As always, gentle readers: technical replies in public and commercial replies in private please (huh? why?)

RECOMMENDED PVD BOOKS
For Engineers & Specifiers


pvd_surf_top2023
Surface Topography Effects on Functional Properties of PVD Coatings by Pan & Drnovsek (2023)
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The Foundations of Vacuum Coating Technology by Donald M. Mattox (2018)
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Properties and Processing of Vapor-Deposited Coatings by Lee, Johnson, Sheldon & Pickering (2014)
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Handbook of Physical Vapor Deposition (PVD) Processing by Donald M. Mattox (2010)
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The Influence of Macroparticles on PVD Coatings by Guido Vergnano (2009)
avail from eBay, AbeBooks, or Amazon

(as an Amazon Associate & eBay Partner, we earn from qualifying purchases)

A. Try PVDed Cr at high temperature?

Jimmy Huang
- Guangzhou China
November 26, 2024


RFQ: I have samples from a couple providers that are using different DLC processes. I am open to anything that makes sense.

Wayne Beckley [returning]
- Eagle
November 29, 2024


Hi Wayne,
adv.
I may be able to coat by hard anodizing your titanium rings later in January. Waiting for the equipment to arrive soon. So far it is the strongest coating with bright surface. Contact me directly please.

61767-1

On the image on the left - this new coating. On the right - hard anodizing 2488 without tumbling.

anna_berkovich
Anna Berkovich
Russamer Lab
supporting advertiser
Pittsburgh, Pennsylvania
russamer labs banner
December 29, 2024


A. Try japanese nano technology product; don't know if there is any seller of it in USA
www.bestfromjapan.com/moreinfo.cfm?Product_id=16871
Hope it helps
and good luck!

Goran Budija
- Cerovski vrh Croatia
January 1, 2025

Ed. note: Readers -- please suggest technologies, but not brands or sources ( huh? why?)





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