The Firing Line Forums

Go Back   The Firing Line Forums > Hogan's Alley > Handguns: The Semi-automatic Forum

Reply
 
Thread Tools
Old February 3, 2013, 01:52 PM   #1
x-five
Member
 
Join Date: January 30, 2013
Location: Custer county, Montana
Posts: 55
Rhodium plating

It looks very nice , so share your opinions about it.
x-five is offline  
Old February 3, 2013, 02:11 PM   #2
teeroux
Senior Member
 
Join Date: December 12, 2006
Posts: 1,494
My wifes wedding ring sure looks nice in it. I don't know about firearms though.
teeroux is offline  
Old February 3, 2013, 03:20 PM   #3
Bill DeShivs
Senior Member
 
Join Date: April 7, 2006
Posts: 7,205
I believe rhodium has to be plated over gold plating. It's very white. Chrome would look about the same and hold up better.
__________________
Bill DeShivs
www.billdeshivs.com
Bill DeShivs is offline  
Old February 3, 2013, 03:33 PM   #4
Downeast
Member
 
Join Date: August 8, 2012
Posts: 21
Rhodium can be plated over gold, nickel or silver. Bill's right, hard chrome would last longer (at a fraction of the cost). I plated a ton of it years ago, primarily on electrical connecters for DoD end use. We used to plate it over silver. At that point it was much more expensive than gold and exceeded $5,000/oz. It would be very expensive to plate it on a handgun and not really worth it, IMO.
Downeast is offline  
Old February 3, 2013, 04:34 PM   #5
Kreyzhorse
Senior Member
 
Join Date: April 12, 2006
Location: NKY
Posts: 11,516
It might look nice..... But it is very expensive and there are better, and cheaper, options.

http://thefiringline.com/forums/showthread.php?t=514830

Besides, why finish a stainless steel gun in rhodium? The steel is already rust and corrosion resistant.

If you are simply trying to pimp a gun, why not have some nice scroll work done instead?
__________________
"He who laughs last, laughs dead." Homer Simpson

Last edited by Kreyzhorse; February 3, 2013 at 04:42 PM.
Kreyzhorse is offline  
Old February 3, 2013, 05:21 PM   #6
Nasty
Senior Member
 
Join Date: February 18, 2008
Posts: 323
Way soft, wears quickly. Rings have to be replated every so often

Industrial hard chrome is far superior. (Armaloy)
__________________
Above is based on the opinion of a 20 year Small Arms Marksmanship and Training Unit USAF instructor with more than 30 years in competitive shooting sports. Your mileage may vary.
Nasty is offline  
Old February 4, 2013, 09:10 AM   #7
Skans
Senior Member
 
Join Date: November 20, 2008
Posts: 8,039
Rhodium really has one industrial purpose - protection of equipment in highly corrosive environments. Unless you plan on taking your pistol around highly corrosive chemicals, it's completely worthless.

A tiny coating is also used on silver jewelry to prevent tarnishing - a form of corrosion. It is easily removed by mild buffing.

I would agree that hard chrome is far superior for guns.
Skans is offline  
Old February 4, 2013, 09:45 AM   #8
+1k ammo
Senior Member
 
Join Date: January 9, 2013
Posts: 191
What does a "hard chroming" cost these days if you can find a place that does that locally. I'm sure there are some around me.

Just wondering, if the metal has to be prepped and then I think is dipped in a bath of (something) and then chromed.

And can any metal thing (object) be chromed?
+1k ammo is offline  
Old February 4, 2013, 02:15 PM   #9
Bill DeShivs
Senior Member
 
Join Date: April 7, 2006
Posts: 7,205
Use a plater that has specific experience with guns. Most local shops don't qualify.
Different metals require different plating processes.
__________________
Bill DeShivs
www.billdeshivs.com
Bill DeShivs is offline  
Old February 4, 2013, 05:16 PM   #10
481
Senior Member
 
Join Date: April 18, 2011
Posts: 486
Rhodium is way too soft for a gun finish.

If I gotta refinish a gun with a corrosion proof treatment, I'd much rather do it with nickel-boron or hard chrome, maybe cobalt if I wanna get "exotic".
__________________
My favorite "gun" book -

QUANTITATIVE AMMUNITION SELECTION
481 is offline  
Old February 4, 2013, 08:48 PM   #11
Downeast
Member
 
Join Date: August 8, 2012
Posts: 21
Actually Rhodium as deposited is about 800 knoop hardness. I know because we had to test it.This is approximately equal to 63 Rockwell "C". Hard Chrome is typically 65-70 Rockwell "C", so Rhodium does get close to chrome hardness. As a member of the Platinum group it also has excellent corrosion resistance. The problem with it, as mentioned is it's just so damn expensive. Really not a great choice for a gun finish unless you have the money of an Arabian oil sheik or similar income.
Downeast is offline  
Old February 4, 2013, 11:14 PM   #12
kozak6
Senior Member
 
Join Date: June 16, 2005
Location: AZ
Posts: 2,322
Currently, it appears to be solely a hilariously silly luxury feature.

For some reason, it appears to bump firearm prices to automobile levels.
kozak6 is offline  
Old February 5, 2013, 08:08 AM   #13
Skans
Senior Member
 
Join Date: November 20, 2008
Posts: 8,039
The spot price of Rhodium ($1,200) is about $470 less than gold. Historically, Rhodium was always much higher than gold - but the stuff really isn't that expensive in comparison. It would take very little Rhodium to plate an entire gun. Rhodium plated guns are pure gimmick.
Skans is offline  
Old February 5, 2013, 12:59 PM   #14
481
Senior Member
 
Join Date: April 18, 2011
Posts: 486
Quote:
Originally Posted by Downeast:
Actually Rhodium as deposited is about 800 knoop hardness. I know because we had to test it.This is approximately equal to 63 Rockwell "C". Hard Chrome is typically 65-70 Rockwell "C", so Rhodium does get close to chrome hardness. As a member of the Platinum group it also has excellent corrosion resistance. The problem with it, as mentioned is it's just so damn expensive. Really not a great choice for a gun finish unless you have the money of an Arabian oil sheik or similar income.
I stand corrected. Thanks.
__________________
My favorite "gun" book -

QUANTITATIVE AMMUNITION SELECTION
481 is offline  
Old February 7, 2013, 06:18 PM   #15
Rinspeed
Senior Member
 
Join Date: February 1, 2000
Posts: 1,148
Quote:
It looks very nice , so share your opinions about it.



Is this Rhodium plating for the $20,000 Sig you're planning on buying.
Rinspeed is offline  
Old February 8, 2013, 09:44 AM   #16
x-five
Member
 
Join Date: January 30, 2013
Location: Custer county, Montana
Posts: 55
Yep, and it willl look better without engraving.
x-five is offline  
Old February 8, 2013, 12:01 PM   #17
Scorch
Senior Member
 
Join Date: February 13, 2006
Location: Washington state
Posts: 11,532
I don't know about rhodium, but some of the exotic metal plating is actually vapor deposition, and is extremely thin, like on the order of .0001" or less, so it would take very little metal to actually plate a gun. Compared to gold electroplating, which goes on about .001-.002" thick, you are talking about very minimal metal cost. Of course, equipment costs for the process may be high.
__________________
Never try to educate someone who resists knowledge at all costs.
But what do I know?
Summit Arms Services
Taylor Machine
Scorch is offline  
Old February 8, 2013, 04:33 PM   #18
Nasty
Senior Member
 
Join Date: February 18, 2008
Posts: 323
The difference between 1 or 2 Rc points can be huge. The Armaloy I had done years ago went Rc 72. Noting ever marked that piece.
__________________
Above is based on the opinion of a 20 year Small Arms Marksmanship and Training Unit USAF instructor with more than 30 years in competitive shooting sports. Your mileage may vary.
Nasty is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 12:02 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.09833 seconds with 9 queries