Copper tape as shielding?

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tubesorbust

Copper tape as shielding?
« on: 18 Nov 2010, 01:15 am »
Does anyone use copper tape as shielding material? My only other option is to line the box with copper sheets.  Tape just seems so much easier.

Photon46

Re: Copper tape as shielding?
« Reply #1 on: 18 Nov 2010, 01:53 am »
http://solutions.3m.com/wps/portal/3M/en_US/electronics/home/productsandservices/products/ProductNavigator/TapeReel/?PC_7_RJH9U5230GE3E02LECIE20KAB4_nid=GSGGYG6HRHbeRQ89J1RQDXgl

As you can see from the link, 3M sells adhesive backed copper tape just for this purpose. I've also used copper foil for shielding to good effect & it's easy to cut to size.

Big Red Machine

Re: Copper tape as shielding?
« Reply #2 on: 18 Nov 2010, 02:09 am »
I have used this copper for lining boxes before just by gluing or double side taping it in:

http://www.basiccopper.com/8mil32gauge.html


Speedskater

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Re: Copper tape as shielding?
« Reply #3 on: 18 Nov 2010, 02:10 am »
We have used copper tape from the Stained Glass hobby store.
Also used 2 inch aluminum tape, but the problem with aluminum is you can't solder sections together.

BaMorin

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Re: Copper tape as shielding?
« Reply #4 on: 20 Nov 2010, 12:19 pm »
Does anyone use copper tape as shielding material? My only other option is to line the box with copper sheets.  Tape just seems so much easier.

The copper foil that 3M sells works..........I've used it in guitar bodies to shield pick ups from radio frequencies. The underside of my turntable top plate is covered with it.......it stops RFI, but has zero effect on EMI.

Occam

Re: Copper tape as shielding?
« Reply #5 on: 20 Nov 2010, 04:00 pm »
The copper foil that 3M sells works..........I've used it in guitar bodies to shield pick ups from radio frequencies. The underside of my turntable top plate is covered with it.......it stops RFI, but has zero effect on EMI.

For a given material to be an effective shield against EMI, its thickness must exceed its skin depth at the given frequency. For copper, that is more than 8mm at 60hz.