Control cavity shielding question

[stratobastard]

Does anyone know if the metal tape made for duct/AC work, will work for shielding a control cavity?

 

[TheArchitect]

Re: Control cavity shielding question

Does anyone know if the metal tape made for duct/AC work, will work for shielding a control cavity?

If its just duct tape no. Whatever you use will have to be electrically conductive

 

[bert123]

Re: Control cavity shielding question

If it is the stuff that looks like aluminum foil I've read that the adhesive is not electrically conductive so you are stuck trying to solder the aluminum peices together, which in my limited experience is difficult.

 

[ColdHit]

Re: Control cavity shielding question

The stuff that looks like aluminum foil or copper foil has an adhesive. This is not duct tape. You don't need to solder them.

http://www.stewmac.com/cgi-bin/hazel.cgi?action=SERVE&sku=0028&ITEM=catalog/sku.html

 

[ErikH]

Re: Control cavity shielding question

If it is the stuff that looks like aluminum foil I've read that the adhesive is not electrically conductive so you are stuck trying to solder the aluminum peices together, which in my limited experience is difficult.

There's another trick you can use if the adhesive isn't conductive.....STAPLES! Get a couple good staples for a staple gun, short legs preferably, and just tap them in to the wood connecting the pieces. Cover with tape to hold it in place and wahla. Of course, the actual aliminum part has to be conductive for it to even work.

 

[TheArchitect]

Re: Control cavity shielding question

The stuff that looks like aluminum foil or copper foil has an adhesive. This is not duct tape. You don't need to solder them.

http://www.stewmac.com/cgi-bin/hazel.cgi?action=SERVE&sku=0028&ITEM=catalog/sku.html

The stuff you linked to has a conductive adhesive. Most however don't and the HVAC stuff that was asked about almost certainly does not and would require the pieces to tacked together to maintain conductivity

 

[ColdHit]

Re: Control cavity shielding question

The stuff you linked to has a conductive adhesive. Most however don't and the HVAC stuff that was asked about almost certainly does not and would require the pieces to tacked together to maintain conductivity

Thanks for the heads up. I did not know there was another way of doing this.

 

[VTM Mike]

Re: Control cavity shielding question

I'm not 100% sure, but I think it should be copper to properly shield. Warmoth sells the copper tape 8" wide for .70 cents per linear inch, and 2" wide tape for .25 cents per inch. So for around $25.00 you can do the whole control cavity with the right stuff.