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post #1 of 27 (permalink) Old 04-21-2019, 10:59 AM - Thread Starter
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Is this corrosion?

Hello!

I'm wondering if you guys think this is corrosion or is it just copper oxidation? Don't mind the dust in certain areas.
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post #2 of 27 (permalink) Old 04-21-2019, 11:32 AM
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Looks fine IMHO.
Rads are usually not coated or painted inside in order to not loose out on efficiency.

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post #3 of 27 (permalink) Old 04-21-2019, 11:38 AM
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All is good.

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post #4 of 27 (permalink) Old 04-21-2019, 11:44 AM
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That’s just unpainted areas of the fins...normal


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post #5 of 27 (permalink) Old 04-21-2019, 02:05 PM - Thread Starter
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Quote: Originally Posted by ZealotKi11er View Post
All is good.
Quote: Originally Posted by gothicVI View Post
Looks fine IMHO.
Rads are usually not coated or painted inside in order to not loose out on efficiency.

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Quote: Originally Posted by ezveedub View Post
That’s just unpainted areas of the fins...normal


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Great to know. Thanks for the replies

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post #6 of 27 (permalink) Old 04-21-2019, 02:52 PM
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Copper doesn't corrode without using some pretty potent stuff. Steel corrodes.

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post #7 of 27 (permalink) Old 04-23-2019, 07:12 AM
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That’s not corrosion.

This is corrosion: nickel plating corroded to reveal copper underneath. I found that nickel coating on some of my stop plugs elsewhere.


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post #8 of 27 (permalink) Old 04-23-2019, 08:12 AM
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That's nasty, welcome to cheap EK nickle plating Just curious what liquid have you used, there is a reason I'm asking if you don't mind and how long have you run that before it happen
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post #9 of 27 (permalink) Old 04-23-2019, 08:27 AM
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Dang Pinnacle!

This is why I only use coolants and/or additives for automobiles. In almost 20 years I have not had plating come off or a loop corrode even with dissimilar metals.

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post #10 of 27 (permalink) Old 04-23-2019, 08:28 AM
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Quote: Originally Posted by Renegade5399 View Post
Dang Pinnacle!



This is why I only use coolants and/or additives for automobiles. In almost 20 years I have not had plating come off or a loop corrode even with dissimilar metals.


Seen it happen with auto coolant as well....


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