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Please Read Before Purchasing EK Nickel Plated Blocks - Update: Revised plating info - Page 89

Poll Results: In light of EK's nickel failure, will you buy their blocks?

 
  • 39% (230)
    Yes, continue or consider using their blocks (copper or nickel)
  • 60% (354)
    No, I will look into other manufacturers.
584 Total Votes  
post #881 of 1650
3 people that I remember off hand reported using just distilled water and no additives, one used just distilled for 4 months posted on XS, one was weeks of use, other didnt say length of time that had corrosion. Should be same as using phn, ie benzalkonium chloride, ie both devoid of purposeful ionization.

Also, 3 people so far using corrosion inhibitors, one had his block for 4 weeks using 5% of Zerex G48 antifreeze (G48 has 4% by weight anticorrosives) in distilled water, already has early corrosion after just 4 weeks, and first few pages this thread, another using primochill ice with corrosion inhibitors and silver coil, and other one previously posted using feser one. For those thinking using a dilute 5-10% antifreeze solution is going to help Ek corrosion if your plating has issues...the fellow using G48 would probably disagree.
Edited by opt33 - 6/12/11 at 6:49pm
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post #882 of 1650
Thanks ^
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post #883 of 1650
Pulled my blocks today to get ready for packaging (RMA) and inspected them one last time. This time I used my polarizing filter for a bit better contrast.




 
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post #884 of 1650
Thread Starter 
Good luck Angry
post #885 of 1650
The ongoing problem with EK's Nickel blocks has caused many users a great deal of issues. The damage on the blocks is not only a major aesthetic problem but also the potential for other components in the loop to be affected. Many rumors have been going around and I feel that many people do not fully understand what is really happening.

Despite what many people have been saying, the blocks are not flaking. The nickel is being corroded off of the copper through a process know as galvanic corrosion. Galvanic corrosion occurs when two dissimilar metals are submerged in a conductive liquid. How different the metals are determines how fast the corrosion will occur (if at all).

Normally the nickel and copper used in the blocks play nicely together but on these EK waterblocks corrosion has occurred. Very small stagnant pools of water have allowed unusual conditions to form that allow for higher levels of corrosion. Once a small amount of the nickel has been removed, a greater surface area is presented and the corrosion can increase dramatically.

One of the requirements for galvanic corrosion is a conductive fluid. 100% pure distilled water is not conductive and will prevent any corrosion from occurring on your blocks. EK's recommendation to stop using silver kill coils and PT-Nuke will stop the corrosion. EK's products are still flawed however, in one way or another. Whether the nickel/copper has an impurity causing a higher galvanic difference or whether the design itself has issues remains unknown. However because many other water cooling products use nickel plating without issue, it can be concluded that EK needs to revise their line of nickel plated waterblocks.

I hope this clears up a lot of the fog surrounding the issue.
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post #886 of 1650
It's the porosity of the nickel which creates the problem. Since it is porous, it exposes the copper to the coolant, while the two metals are touching each other creating a circuit. If you create a circuit, you can expect galvanic corrosion.
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post #887 of 1650
Nickel is not a porous metal, it is one of the alloys used to make Stainless steal

The problem seems to be exposed Copper due to questionable plating and may also include questionable Copper quality.

I have two Ek FC470 Copper blocks and have seen no corrosion using distilled water and PTnuk
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post #888 of 1650
The implication of porosity was pointed towards the quality of the plating, and not nickel in general.
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post #889 of 1650
so you decide to open up another thread just to reaped what already have been mention like ..1..0 times
"EK's recommendation to stop using silver kill coils and PT-Nuke will stop the corrosion."
really ?????
    
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post #890 of 1650
Quote:
Originally Posted by coolhandluke41 View Post
so you decide to open up another thread just to reaped what already have been mention like ..1..0 times
"EK's recommendation to stop using silver kill coils and PT-Nuke will stop the corrosion."
really ?????
It seems a lot of people are angry with EK for blaming PT-Nuke/Kill Coils. I was just trying to clear up that both EK and us (the customer) are right. We are right to demand new blocks as are current ones are flawed, and EK is announcing that if you stop using silver kill coil it will also fix the problem. Two solutions to the same problem.
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