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Blackening a Chain?

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Blackening a Chain?

Old 07-18-22, 03:56 PM
  #26  
1989Pre
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Originally Posted by cxwrench View Post
Plan. Ahead.
That's good advice. I'm really not very impulsive. I just thought I'd take my show-piece (which has been just wall-art)
on a club ride.
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Old 07-18-22, 04:07 PM
  #27  
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Old 07-18-22, 04:26 PM
  #28  
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Originally Posted by 1989Pre View Post
I am using a 4-speed freewheel, 3/32 chain.
4 speed? Thatís a little before my time.
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Old 07-18-22, 05:18 PM
  #29  
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Find some of this - it will make your chain black in short order and also is supposed to be a good lube.

GRAPHENlube World's Best Wax Lubricant Period. (absoluteblack.cc)

Or just ride your bike with normal chain lube, it will get dirty and black.

If your chain were pristine clean, you could probably spray paint it and it would look good for a short time. It would have to be totally pristine though.

Last edited by Camilo; 07-19-22 at 11:24 PM.
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Old 07-18-22, 05:32 PM
  #30  
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If your local shop only has silver or gold chains, maybe that's a ... uh ... jewelry store?
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Old 07-18-22, 06:37 PM
  #31  
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Snarky replies aside, stripping to clean bare metal and soaking in warm citric or phosphoric acid will probably give you a dull dark gray.
Proper black might involve calling other shops.
The fastest might be a local co-op with a used chain. Overnight shipping from an online source comes to mind as well.
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Old 07-18-22, 07:50 PM
  #32  
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​​​​​​https://shop.mccormick.com/products/...seasoning-3-oz
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Old 07-18-22, 10:53 PM
  #33  
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Originally Posted by 1989Pre View Post
I have a vintage bike, but L.B.S. does not have a black chain. Is there a safe way for me to make a silver chain black?
put wet lube on it and ride it for ~10 miles. Itíll look plenty black
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Old 07-19-22, 08:47 PM
  #34  
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Snarky replies aside ... soak in phosphoric acid.
https://en.m.wikipedia.org/wiki/Facepalm
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Old 07-20-22, 02:59 AM
  #35  
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Originally Posted by SurferRosa View Post
Itís the active ingredient in many of the rust removers at the hardware store and will matte/darken the metal.
Sure, itíll start hydrogen embrittlement if you leave it in too long. I suppose it is expecting too much that the OP is going to research the downsides to these options.
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Old 07-20-22, 09:21 AM
  #36  
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There are plenty of home gun bluing concoctions on the market that may do the job, if it's really that important and urgent. I would think it's easier, not to mention smarter and cheaper, just to buy the right chain. Certainly anything would be better than allowing one's chain to get so dirty and oily that it becomes black.
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Old 07-20-22, 10:11 AM
  #37  
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Originally Posted by 1989Pre View Post
This is the intuitive answer I'd been looking for. I need it by wednesday. any other bright ideas?
Well it is Wednesday. Curious what action you took with the chain to get you riding this bike.
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Old 07-20-22, 10:38 AM
  #38  
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Originally Posted by jccaclimber View Post
It’s the active ingredient in many of the rust removers at the hardware store and will matte/darken the metal.
Using phosphoric acid on a new chain deserves the <facepalm>.
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Old 07-20-22, 01:26 PM
  #39  
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Originally Posted by 1989Pre View Post
I have a vintage bike, but L.B.S. does not have a black chain. Is there a safe way for me to make a silver chain black?
The "silver" chains I've had were clearly nickel or similarly plated. So you would need to remove the plating first before using a cold blue to blacken the links. Consider that it would also blacken the rollers too. And the ends of the pins. So it would be ALL black. Likely not what you want. And also multiple chemical baths at least one which I believe would be nitric acid to remove the plating if it is in fact nickel. Or perhaps electrically removing it with a different bath and power supply. But that is likely to be a spoty sort of deal since the chain might not be equally conductive along the whole length depending on a few things.

All in all the others are giving you the best solution. Just shop and buy the chain color you want to start. If you need a chain for the weekend then buy the silver one and replace it later. Or drive to the next LBS in the next town or district.
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Old 07-20-22, 01:37 PM
  #40  
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Personally, I avoid black chains like the plague. Full silver for me, please!
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Old 07-20-22, 02:21 PM
  #41  
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Originally Posted by smd4 View Post
Personally, I avoid black chains like the plague. Full silver for me, please!
Did they have silver chains in 1948?
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Old 07-20-22, 02:22 PM
  #42  
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Originally Posted by BCRider View Post
The "silver" chains I've had were clearly nickel or similarly plated. So you would need to remove the plating first before using a cold blue to blacken the links. Consider that it would also blacken the rollers too. And the ends of the pins. So it would be ALL black. Likely not what you want. And also multiple chemical baths at least one which I believe would be nitric acid to remove the plating if it is in fact nickel. Or perhaps electrically removing it with a different bath and power supply. But that is likely to be a spoty sort of deal since the chain might not be equally conductive along the whole length depending on a few things.

All in all the others are giving you the best solution. Just shop and buy the chain color you want to start. If you need a chain for the weekend then buy the silver one and replace it later. Or drive to the next LBS in the next town or district.
This all makes sense. I should have thought about the plating. I'll just take another bike until I can buy a proper Renold or Perry.
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Old 07-20-22, 02:27 PM
  #43  
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Originally Posted by 1989Pre View Post
Did they have silver chains in 1948?
It's your bike--you tell me. I have no idea.
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Old 07-21-22, 08:32 AM
  #44  
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Originally Posted by 1989Pre View Post
This all makes sense. I should have thought about the plating. I'll just take another bike until I can buy a proper Renold or Perry.
I guess itís past the date you needed it by, but next time something like this gun barrel bluing might work.

https://www.bluewonderguncare.com/pr...-gun-black-kit

Dan
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Old 07-24-22, 02:32 AM
  #45  
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Originally Posted by _ForceD_ View Post
I guess itís past the date you needed it by, but next time something like this gun barrel bluing might work.

https://www.bluewonderguncare.com/pr...-gun-black-kit

Dan
after deplating the nickel finish on the chain.
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