Smith & Wesson Forum

Go Back   Smith & Wesson Forum > >

Notices

S&W Revolvers: 1980 to the Present All NON-PINNED Barrels, the L-Frames, and the New Era Revolvers


Reply
 
Thread Tools Display Modes
  #1  
Old 08-09-2012, 11:19 AM
tacotime tacotime is offline
Member
 
Join Date: Oct 2003
Location: Texas
Posts: 531
Likes: 0
Liked 98 Times in 58 Posts
Default Any rust protection from cold blue?

I read once before that cold blue, like the Birchwood Perma Blue, offers no actual rust protection once done.

Correct?

Not even better than bare metal?
Reply With Quote
  #2  
Old 08-09-2012, 06:24 PM
ltxi ltxi is offline
Absent Comrade
Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue?  
Join Date: Oct 2011
Posts: 170
Likes: 15
Liked 21 Times in 16 Posts
Default

correct...
Reply With Quote
  #3  
Old 08-09-2012, 07:12 PM
Pisgah Pisgah is offline
Member
Any rust protection from cold blue?  
Join Date: Nov 2005
Location: Upstate SC
Posts: 2,586
Likes: 7
Liked 3,282 Times in 1,121 Posts
Default

Actually, it is also true for hot bluing, as well. And kept well-oiled, bare metal is as rust resistant as either.
__________________
Pisgah
Reply With Quote
  #4  
Old 08-09-2012, 09:01 PM
shawn mccarver shawn mccarver is offline
SWCA Member
Any rust protection from cold blue? Any rust protection from cold blue?  
Join Date: Aug 2005
Posts: 7,529
Likes: 3,155
Liked 5,876 Times in 2,359 Posts
Default

Quote:
Originally Posted by tacotime View Post
I read once before that cold blue, like the Birchwood Perma Blue, offers no actual rust protection once done.

Correct?

Not even better than bare metal?
If there is any, it would be hard to tell.
Reply With Quote
  #5  
Old 08-09-2012, 09:42 PM
ltxi ltxi is offline
Absent Comrade
Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue?  
Join Date: Oct 2011
Posts: 170
Likes: 15
Liked 21 Times in 16 Posts
Default

Quote:
Originally Posted by Pisgah View Post
Actually, it is also true for hot bluing, as well. And kept well-oiled, bare metal is as rust resistant as either.
True point. Blue is cosmetic. Bedside gun is a 3" M13 that got a bit wet unnoticed and developed some rust....'bout a quarter to half dollar size....on the left frame above and rear of the trigger. Cleaned it up, oiled it, and put refinish on my to do list. That was about six or seven years ago. Still happy if not pretty in our dry climate.
Reply With Quote
  #6  
Old 08-09-2012, 09:45 PM
murphydog's Avatar
murphydog murphydog is offline
Moderator
Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue?  
Join Date: Jun 2007
Posts: 21,578
Likes: 81
Liked 11,665 Times in 6,325 Posts
Default

Bluing is controlled rusting in a dark color; it's the red kind that causes an uproar . So, cold blue does protect the metal to an extent, from the red stuff.
__________________
Alan
SWCA 2023, SWHF 220
Reply With Quote
The Following User Likes This Post:
  #7  
Old 08-10-2012, 05:04 AM
bobbyjack bobbyjack is offline
Member
 
Join Date: May 2007
Location: Norman Oklahoma
Posts: 68
Likes: 0
Liked 4 Times in 2 Posts
Default

When I cold blue it is just to make that part to look like the rest of the

gun,after light sanding with artist scetch paper and degreasing .

Then many rounds of blueing and wiping the dryed grey residue off

WETWIPING then dry ,repeat untill the color looks the way I want it.

I then coat the piece in oil and forget about it(that is when the dark

color takes) it will look good as long as you keep it oiled.

And if the barrel had patina on it to start,it will return to patina again.

So yes even white steel with oil will prevent rust,but cold blue steel with

oil will help prevent rust also.

YMMV Bob
Reply With Quote
  #8  
Old 08-10-2012, 08:26 PM
1973Glenfield25 1973Glenfield25 is offline
Member
Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue?  
Join Date: Nov 2011
Posts: 47
Likes: 3
Liked 13 Times in 3 Posts
Default

I'm not a chemist, but this is how it was explained to me.

Iron, Fe, will oxidize (rust) when exposed to air. The red flakey rust is FeO3. 3 oxygen atoms attached to the iron atom. FeO3 molecules take up more space than Fe atoms so they can't fit in the original space and flake off the surface of the steel.

Blued steel is also oxidized iron but is FeO4. These molecules take up the same amount of space as the iron atoms. So they stay in place and protect the steel from further oxidation.

Let's hear from a chemist on this.
Reply With Quote
  #9  
Old 08-10-2012, 08:51 PM
Kelly Green's Avatar
Kelly Green Kelly Green is offline
Member
Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue?  
Join Date: May 2010
Location: Texas
Posts: 897
Likes: 55
Liked 524 Times in 142 Posts
Default

I had an old Model 10 that was one ugly gun. I reblued it myself several years ago with cold blue, Perma Blue I believe it was. It looked great after I was done but the finish didn’t hold up well at all. It eventually looked worse than before I reworked it. If I ever have another gun that needs bluing, I’ll get a professional to do it the old fashioned way, hot blue.
Reply With Quote
  #10  
Old 08-11-2012, 06:46 AM
chief38's Avatar
chief38 chief38 is offline
Member
Any rust protection from cold blue?  
Join Date: Apr 2006
Posts: 13,366
Likes: 5,261
Liked 14,903 Times in 5,620 Posts
Default

I find that using cold blue on a working gun is mostly a temporary cosmetic thing and does little if anything to truly prevent rust. It is quite important to wash off all of the cold bluing and to stop the process (which is actually rust it self) then oil the newly blued area. If you are going to use the gun in a wet environment your newly blued area will more than likely be the first to rust again.

Chief38
Reply With Quote
  #11  
Old 05-26-2020, 10:22 PM
Mr Wonderful Mr Wonderful is offline
Member
Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue? Any rust protection from cold blue?  
Join Date: May 2020
Posts: 38
Likes: 42
Liked 100 Times in 22 Posts
Default

Quote:
Originally Posted by tacotime View Post
I read once before that cold blue, like the Birchwood Perma Blue, offers no actual rust protection once done.

Correct?

Not even better than bare metal?
I know this is an old thread, but that's not true at all.
I have a 870 I cold blued 10 years ago, and it's still rust free. I store it in the exact same place I stored when new, with the factory bluing, the factory bluing that produced small rust spots --the reason for me re bluing in the first place.

Had I only stripped the factory bluing, and sanded off the rust and left bare, I can assure you the gun would now be a rusted mess without the cold bluing.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cold Blue Mydogmax The Lounge 7 03-08-2014 06:24 PM
COLD BLUE DUNTOV S&W Revolvers: 1980 to the Present 6 05-29-2011 05:19 PM
A big A+ for Cold Blue Steel Navy(SS) Feedback 0 05-21-2011 11:17 AM
Cold Blue? ARMinSC S&W-Smithing 12 10-23-2010 03:23 AM
Cold Blue PackN S&W Revolvers: 1961 to 1980 9 12-02-2008 12:52 PM

Powered by vBadvanced CMPS v3.2.3
smith-wessonforum.com tested by Norton Internet Security smith-wessonforum.com tested by McAfee Internet Security

All times are GMT -4. The time now is 01:49 AM.


Search Engine Optimisation provided by DragonByte SEO v2.0.42 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Smith-WessonForum.com is not affiliated with Smith & Wesson Holding Corporation (NASDAQ Global Select: SWHC)