August 18, 2009
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Why hard drives are painted black?
My answer? I don’t know.
I Googled and binged but nothing came up. My guess is that it’s either to prevent corrosion or the paint is nonconductive to prevent the PCB from short circuiting or it has antimagnetic properties.
That’s what a typical hard drive looks like with the cover removed. Notice how the inside and outside shell is painted black? But the 6 none painted squares are where the cover is screwed down to. Some hard drive’s top edge is not even painted black, like the one sitting on my desk which I use as a coaster.
Some hard drive’s top cover is painted black to match but most of them are not painted, leaving it in its natural aluminum color. Back in the day there are a few drives that are not painted and now almost all the hard drives you buy today are painted black.
What is the purpose of the paint? Why does it have to be black?
Comments (7)
Because black is a cool color.
Hello Jon,
You made your site simple yet elegant. The pictures are a nice touch. I see that you have a wide variety of interests and observations here!
I’m sending an important message to people from Jehovah God that is in the Bible: 7 For sure the Lord does not do anything without making His plan known to His servants who speak for Him. (Amos 3:7) (NLV)
Good site~
Good question.
Yea good question. My guess would probably the same as yours. Knowing large corporations emphasis on cutting cost and increasing the reliability of their products, they could have simply switched to a marginally cheaper type of metal alloy casing which requires a coating.
Everything you utter may be well brought-up it’s what I assume
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