Recent content by Bobendren

mmm...definitely coated with something looking at these pictures... You can see the base is the usual copper colour, but the fins are deep red.

It's been coated with something to make it red. Most reviews that comment on the colour say it's been anodized, but copper can't be anodized, so what is it?

This is another zalman cooler: http://www.zalman.co.kr/eng/product/view.asp?idx=174&code=009" How is this thing coated? It's all copper.

Wow, that was really indepth - thanks! What about Vacuum Coating? I'm not really sure what it is, wiki's explanation is confusing. Could it apply to this situation?

Can you elaborate on this please. I'm not following

But that's want I want it to do, surely this would help clean it up? I would start with a low concentration. mmm...how sure are you about that? The fins are heavily compressed together. You want to coat the sink to prevent salt corrosion, keep it shiny --- hit it with a light coat of...

Cool, thanks! Doubt that sort of thing would be available in my part of the world though. edit: And what would NaOH do to copper if i didn't take the heatsink apart?

Thanks to everyone for the replies :biggrin: Bystander, you make some good points, especially the bit about tossing it in the bin - I'm really getting fed up with this thing now. But if I go out and buy a new one, in 6 months time i'll have to do the same again...and I've got a side window...

Thanks for the reply :smile: It's a computer heatsink. I've posted simliar questions on PC related forums, but I wasn't getting very far. From the manufacturer's website: http://www.zalman.co.kr/usa/product/view.asp?idx=142&code=009" Here are some pictures of my particular...

Hi, I hope this question is in the right section. I have a heatsink that consists of both aluminium and copper. It's started to corrode, oxidate etc. I've tried different chemicals (such as HCL, Salt and Vinegar, Coke, and a aluminum brighenter that consisted of hydrofluric acid and...