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Re: CONDUCTIVE PAINT/ADHESIVE?
Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>
Hi,
If it is "high voltage", this stuff will do fine:
http://www.siliconacoustics.com/arsiltherad.html
Shipping is only a buck. But I will send you my extra for free ;-)))
At low voltage, the epoxy suspension is a fair insulator though.
We used to use this stuff by the pound for die and SM component attach:
http://www.ides.com/grades/ds/E12344.htm
But expensive and shipped in dry ice and stuff so sort of hard for
the average fella...
Silver filled epoxies can hold of thousand of volts, or be super low
voltage conductive.... I do not know how they pull off either trick
there... Some you can drop uV across and others you can shoot sparks
across the surface...
Cheers,
Terry
At 10:56 PM 9/17/2006, you wrote:
At 04:03 PM 9/17/2006, Tesla list wrote:
Original poster: Ed Phillips <evp@xxxxxxxxxxx>
I'm looking for a small quantity of inexpensive conductive
paint or adhesive for use with metallized plastic parts in a
potential microwave application. I have a couple of ounces of
silver bearing (>99% based on weight) pain in some kind of a
nitrocellulose binder which I've been hoarding for almost 60 years
but hate to use it if something less expensive is
available. Seems to me there must be, probably copper based, but
a quick look hasn't turned up anything. Any clues? I'm not
intending to coat terminals or anything like that, just make
electrical connection between brass waveguide and plastic
parts. Need enough strength to permit safe handling but may be
able to accomplish that part by overcoating with epoxy
cement. Any suggestions welcome.
Ed
There's a bunch of nickel based paints used for all manner of EMI shielding.
Conductive epoxy is readily available (it's used for things like die
attach, and is silver loaded, I think). Silver's not all that
expensive.. $11/oz and an ounce is a lot in an application like this.