Galvanizing Coil Springs - Defender Source
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  #1  
Old May 11th, 2011, 04:50 PM
ajh
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Andrew J. Hutton
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Galvanizing Coil Springs

Anyone had any issues galvanizing coil springs? From everything I've read it should be fine but I was wondering about any real-world issues that people have run into.
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  #2  
Old May 11th, 2011, 04:56 PM
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barry f
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Why would you bother?
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  #3  
Old May 11th, 2011, 05:13 PM
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I would think it would flake off with all of the flexing.
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  #4  
Old May 11th, 2011, 05:18 PM
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Has anyone heard of a coil spring rusting to the point where it would make a difference?
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Old May 11th, 2011, 05:18 PM
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why wouldn't you bother? if it can be galvanized and you are head to the galvanizer- 4 springs wouldnt cost you any more. after i did all my galvanizing i thought about that the springs and a few other parts that i didnt do. (but im guessing there is a reason why we dont hear more about it)
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  #6  
Old May 11th, 2011, 05:24 PM
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Andrew J. Hutton
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I do enough galvanizing every 6 months that adding in some springs is a negligible cost. The rust may be only cosmetic but looks bad when everything else is galvanized and standing up well. A number of spring manufacturers do galvanize them, just none of the ones available for Rovers it seems.
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  #7  
Old May 11th, 2011, 05:46 PM
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yes, you can, but need to understand the material and the galvanizer needs to know their stuff.
good read: http://www.ingal.com.au/IGSM/14.htm

a good option we have used here for salt water emersion is a PVC coating - a lot like the stuff on tool handles(but not the DIY crap. Doesn't crack like powder coating does do to the spring torsional movement.

http://www.usplasticcoatings.com/pla...s_services.htm
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Old May 11th, 2011, 08:58 PM
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I understand that you can galvanize spring steel but wouldn't the heat from the galvanizing process ruin the temper in the springs that the spring companies charge you hundreds for?
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Old May 11th, 2011, 10:20 PM
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Quote:
Originally Posted by MUDSUX
I understand that you can galvanize spring steel but wouldn't the heat from the galvanizing process ruin the temper in the springs that the spring companies charge you hundreds for?
I did some quick checking on the internets and it seems that molten zinc for galvanizing is around 860 degrees and a spring temper is about 600 degrees.

The question is how hot does the material being galvanized need to get to accept the zinc?

I think you might be compromising your temper by galvanizing your springs. Also I think it would flake off because of the compression. But if some manufacturers are doing it I guess it's possible.
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  #10  
Old May 12th, 2011, 12:10 PM
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Quote:
Originally Posted by Ren Ching View Post
Has anyone heard of a coil spring rusting to the point where it would make a difference?
Yes actually, a little surface rust in spots or even light surface rust across a high percentage of the spring is OK but once you get heavy scale forming the wire effectively gets smaller, and coil springs start to weaken fast. But you'd have to abuse a spring, leave it covered in salt, etc for years before it got weak enough to collapse.
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  #11  
Old May 12th, 2011, 01:10 PM
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Of course it is possible. But by the time that happens they will be worn out anyway. And they are cheap and easy to change. Hell, yours come out by themselves
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  #12  
Old May 12th, 2011, 02:48 PM
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The original rear coils on my 300TDi donor 110, which spent most of its life in the Orkney Islands in the North sea, were corroded to hell, and were barely compressed (maybe 1/2") from stock specs. I can't see any reason to galvanize springs.
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  #13  
Old May 12th, 2011, 03:28 PM
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Frank Rafka
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bling...why not chrome them
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  #14  
Old May 12th, 2011, 03:54 PM
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Matthew
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I blasted a set for an e30 with glass beads, then sprayed them with plasti-dip

It is a rubber like coating that is abrasive resistant and goes on like spray paint, very flexible

Peeps paint entire wheels and car trim with the stuff.

http://www.amazon.com/Plastic-Intl-1...5230051&sr=8-1

did mine in red 3 years later in the NE they look great, except for where it was rubbed off on 2 dead coils touching
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