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Rust in new radiator?

Last response: in Overclocking
February 22, 2013 5:46:53 PM

So i recently purchased a Koolance HX-CU1020V radiator off of amazon and received it today. Upon looking inside the two port holes I noticed what appeared to be rust. This radiator was advertised as new so is that something that is common? Or should I be worried or return it?

More about : rust radiator

a c 324 K Overclocking
February 22, 2013 5:57:51 PM

Certainly looks like oxidation, but it shouldn't be 'rust' in the sense of oxidizing steel since radiators are made of copper and brass...especially tubes and tanks. I wouldn't be too concerned, but it definitely warrants a good rinse and is a perfect example why rinsing new components is highly advisable.
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a c 149 K Overclocking
February 22, 2013 6:47:20 PM

Rinse out that rad to see if it helps. Motomix. :D 
a b K Overclocking
February 22, 2013 9:43:41 PM

Looks like normal oxidation of the copper/brass inside the rad. Should be good with a few rinses with hot water.