Author Topic: Ordinary paper and card as electrostatic dissipative materials?  (Read 3386 times)

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Offline seanspotatobusinessTopic starter

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Ordinary paper and card as electrostatic dissipative materials?
« on: September 20, 2023, 04:23:33 am »
I have noticed that my cheap surface resistivity meter gives 1x10E8-9 when used against paper or raw (uncoated) brown corrugated cardboard. I think it's due to the tiny amount of moisture that the paper absorbs from the air. Does it follow that I can push DIP ICs into a piece of corrugated card, put it in a cardboard box and call it safe? What if it was transported this way? I live in the UK where the outside humidity rarely dips below 60%. Indoors, we usually have the problem of too much humidity so I think the card will always be dissipative. It makes sense to me but I'm not qualified.

I chose the dodgy tech subforum because this is my dodgy version of those fancy ESD boxes.

Edit: having just watched one of Dave's videos on dissipative vs sheilding, I'm thinking it could be alright in the cardboard if it's then inside a sheilding bag. If anyone in a <60% humidity environment has one of those surface voltage meters, could you do me a favour and rub some paper or card in front of it and see if it behaves the same way as those pink bags/foam?
« Last Edit: September 20, 2023, 06:13:16 am by seanspotatobusiness »
 

Offline BrokenYugo

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Re: Ordinary paper and card as electrostatic dissipative materials?
« Reply #1 on: September 20, 2023, 12:48:58 pm »
I've actually seen brown cardboard suggested before, I think by the guy who came up with the pink stuff in an old videotaped ESD presentation he put on.
 

Offline thm_w

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Re: Ordinary paper and card as electrostatic dissipative materials?
« Reply #2 on: September 22, 2023, 09:02:05 pm »
If you want to be cheap, aluminum foil is an option: https://www.eevblog.com/forum/projects/aluminum-foil-as-anti-static-foil/
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