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Anti rust treatment on COC.


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Maiche 25

Hi, I have a coc 2 from 2010 which is quite rusty, despite the 3 in 1 oil it gets stuck regularly after a fairly short time and the rust is still a little visible. My question is simple; can we use an anti rust treatment for the spring of iron mind grippers? I fear that there is a treatment on the spring and that it weakens the metal, in fact I use a product   that tends to remove the surface treatments of the metal in particular the chrome if it is damaged.

Edited by Maiche 25
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Emmanouil Marizas

I was wondering the same thing. If anyone has any tips that would be very helpful!

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Cannon

I've had good luck with using 3-in-1 as a penetrating treatment and fine steel wool.  Really slop it on there with an old tooth brush or something and let it sit.  It takes a little elbow grease and effort to get in all the nooks and crannies.  

CoC springs are polished, not chromed so you should be okay in that respect.  There is no chrome to lose/damage.  

There are rust remover soaks you can try if it's really bad.  WD-40 makes one, and I've seen Evapo-rust be extremely effective.  However I will say I have not tried either on grippers and while they will definitely remove the rust, I cannot promise they won't discolor the spring.  

None of these products will "weaken" the spring.  I don't believe that is possible with chemicals.  

I will say I would opt for a clean and discolored spring over a rusty one.  So it might be worth giving one of these products a try if 3-in-1 and light steel wool doesn't give a good result.  

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Cannon

I've been meaning to try Evapo-rust actually.  I would be willing to risk scrapping a gripper as the guinea pig.  My problem is I don't have a gripper with a rusty spring... :tongue

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Maiche 25

Thanks a lot for your answer! I am just going to receive evaporust, which is overpriced in France unlike the USA. I will try it without delay, as you said I have a lot more to gain than to lose!🙂

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Maiche 25

Just for information it seems that two types of metal should be avoided with evapo rust: magnesium and cadmium ... Not very common in my opinion in grippers although some paints contain cadmium, so to see for painted springs.😕

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Cannon
2 hours ago, Maiche 25 said:

Thanks a lot for your answer! I am just going to receive evaporust, which is overpriced in France unlike the USA. I will try it without delay, as you said I have a lot more to gain than to lose!🙂

Post before and after photos!

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Maiche 25
Posted (edited)

The before and after photos really do not give a visually appreciable result so unfortunately there is no use in posting them!😟 In fact the rust is invisible from the outside, it was well at the bottom of the groove of the spiral of the spring, where it should not be. The evaporust worked remarkably, it is not the same gripper anymore, it has become super smooth and above all its RGC has dropped in an incredible way. With the 3 in 1 oil its RGC which had to be 115, so a very hard coc 2, it had gone to 110 no more and after anti rust treatment if I compare it to a 2020 coc 2 (106 from rgc tested at CPW) and well it barely exceeds 100 in my opinion!

Having said that the coc 2 CPW is brand new and the gap between the handles is much larger than this older coc 2 from 2010, so it looks like it may be harder than it is.

Edited by Maiche 25
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Cannon

Interesting. So you feel like the Evaporust affected the spring? I’m not sure by what means that could happen.

I actually think it’s more likely the rust and grime and lack of oil was artificially raising the rating. Now that it’s clean, maybe it’s back to normal. Is that possible?

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Maiche 25

Yes it is exactly your second hypothesis, this gripper made a lot of noise, had points of friction everywhere and especially was extremely hard on the last cm! Indeed I think that the evaporust only removed the rust and dirt and that this gripper was particularly seized so it only returned to what it should be when it left the factory, an easy coc 2 !😀

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Cannon

And there is no discoloration of the spring or handles?  I really would enjoy seeing an after photo.  How long did you leave it in the solution?

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Cannon
25 minutes ago, Markob42 said:

Is there a good maintaince routine one should run on grippers?

Generally just a decent oil on the spring like 3-in-one. I don’t recommend WD-40 it gets gummy (and I don’t think it is technically a lubricant). Old toothbrush or light steel wool on the spring if needed to work off grime or light rust. Nylon fingernail brush on the handles. 

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Maiche 25
Posted (edited)
 

 

 

 

There’s really no change in that the spring is more matte, a bit blackened. With rusted screwdriver bits I had also obtained a result with a blackening but this time very strong , these bits work perfectly however.It seems that steels with a very high carbon content give this result . I soaked the spring for five hours!

 

 

100_0577.JPG

Edited by Maiche 25
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Emmanouil Marizas
On 8/13/2020 at 9:12 PM, Cannon said:

I've had good luck with using 3-in-1 as a penetrating treatment and fine steel wool.  Really slop it on there with an old tooth brush or something and let it sit.  It takes a little elbow grease and effort to get in all the nooks and crannies.  

CoC springs are polished, not chromed so you should be okay in that respect.  There is no chrome to lose/damage.  

There are rust remover soaks you can try if it's really bad.  WD-40 makes one, and I've seen Evapo-rust be extremely effective.  However I will say I have not tried either on grippers and while they will definitely remove the rust, I cannot promise they won't discolor the spring.  

None of these products will "weaken" the spring.  I don't believe that is possible with chemicals.  

I will say I would opt for a clean and discolored spring over a rusty one.  So it might be worth giving one of these products a try if 3-in-1 and light steel wool doesn't give a good result.  

Thank you for this tip. 

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