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Conductive Epoxy — Parallax Forums

Conductive Epoxy

ArchiverArchiver Posts: 46,084
edited 2000-08-26 17:49 in General Discussion
Anybody know where I can get some conductive Epoxy. (or something
similar) I need to for some solar pannels i got from jameco. thanks.

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2000-08-23 07:43
    Go to:http://www.cir.com/pc/pc.htm

    It's pricey, but it works. Funny stuff- can't measure the conductance while
    it's wet, but when cured, its conductive. Used it to cement 1/16th watt
    SMT resistors on the HO model train axles for signaling purposes.

    Wayne


    Wayne Roderick P.E. (EE, ret)
    CEO, Teton Short Line, (NMRA life-1721)
    e-mail tetonsl@i... Pocatello Idaho, USA
    http://www.ida.net/users/tetonsl/railroad
    Note new URL- /biz/ becomes /users/
  • ArchiverArchiver Posts: 46,084
    edited 2000-08-23 13:26
    Try:
    http://www.contacteast.com/product/prodpage.cfm?grp=4088B73C-EEE0-11D4-8A710050D\
    A5FEB55&sid=711490C9-787B-11D4-A64D009027AFC798


    There was another manufacturer CircuitWorks that have the same product.
    in two categories:
    a) carbon powder
    b) silver powder

    ACJacques


    gliebetronics@h... wrote:
    >
    > Anybody know where I can get some conductive Epoxy. (or something
    > similar) I need to for some solar pannels i got from jameco. thanks.
  • ArchiverArchiver Posts: 46,084
    edited 2000-08-23 14:05
    On 23 Aug 2000, you wrote:

    > All I need is some type of goo or something that I can use to attach wires to
    > my Solar pannels. They are glass ones, no those tiny paper thin ones that
    > break easily. So I can't soldier wires on to the glass pannels. What should I
    > use to attach leads to my pannels? I heard there was a such thing as
    > conductive epoxy.???

    Circuit Works makes some. A bit pricey($14.50 for 7 gram tubes). Hosfelt
    Electroincs and other carry it.
  • ArchiverArchiver Posts: 46,084
    edited 2000-08-23 14:25
    This discussion on Conductive Epoxy I find quite
    timely. I have finished assembly of a fairly large
    solar array panel (3'x4') into a frame. The next step
    was to attach four power lead from it (two 6-volt
    outputs).. I was assuming I could solder directly to
    the back of the panel, but now am rethinking this
    decision in that I may damage the array.

    With the Conductive Epoxy.. Will it allow for a
    current of say 2-5amps to pass through it, reliably?
    Can I use a #8 wire with it? What would be the maximum
    droplet size I could use? Once applied and cured,
    should I protect the connection with a standard,
    non-corrosive epoxy? What are it weather
    characteristics (will it run is cold to hot ranges of
    -30f to +110f)?

    Thanks

    __________________________________________________
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    Yahoo! Mail - Free email you can access from anywhere!
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  • ArchiverArchiver Posts: 46,084
    edited 2000-08-23 17:27
    > This discussion on Conductive Epoxy I find quite
    > timely. I have finished assembly of a fairly large
    > solar array panel (3'x4') into a frame. The next step
    > was to attach four power lead from it (two 6-volt
    > outputs).. I was assuming I could solder directly to
    > the back of the panel, but now am rethinking this
    > decision in that I may damage the array.

    > With the Conductive Epoxy.. Will it allow for a
    > current of say 2-5amps to pass through it, reliably?
    > Can I use a #8 wire with it? What would be the maximum
    > droplet size I could use? Once applied and cured,
    > should I protect the connection with a standard,
    > non-corrosive epoxy? What are it weather
    > characteristics (will it run is cold to hot ranges of
    > -30f to +110f)?

    With those heavy mechanical and electrical loads and the large temperature
    range, don't trust epoxy. I have never had a problem soldering directly to
    solar panels. Usually there are points or strips on the panel that are
    meant for that purpose.

    -- Tracy Allen
    Electronically Monitored Ecosystems
    http://www.emesystems.com
  • ArchiverArchiver Posts: 46,084
    edited 2000-08-24 00:31
    Not only pricey, but the 2-component stuff has a short shelf life. One of
    the tubes rapidly becomes too hard to use. I try to use conductive grease
    instead, whenever possible.
    Dennis

    Original Message
    From: Mike DeMetz [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=T5cMdG91nTtFX3U2NBdMIkT1Yz7W91SdvqKw9p_ihe6ze9P7hqDATqPivl1exrMeurn9Mdnl2xP-jBApHttvzA]miked@t...[/url
    Sent: Wednesday, August 23, 2000 6:05 AM
    To: basicstamps@egroups.com
    Subject: [noparse][[/noparse]basicstamps] Re: Conductive epoxy


    On 23 Aug 2000, you wrote:

    > All I need is some type of goo or something that I can use to attach wires
    to
    > my Solar pannels. They are glass ones, no those tiny paper thin ones that
    > break easily. So I can't soldier wires on to the glass pannels. What
    should I
    > use to attach leads to my pannels? I heard there was a such thing as
    > conductive epoxy.???

    Circuit Works makes some. A bit pricey($14.50 for 7 gram tubes). Hosfelt
    Electroincs and other carry it.
  • ArchiverArchiver Posts: 46,084
    edited 2000-08-25 20:50
    Try mixing graphite with the epoxy it should work depending on your loading.


    >From: Jack Scasserra <jscasserra@y...>
    >Reply-To: basicstamps@egroups.com
    >To: basicstamps@egroups.com
    >Subject: [noparse][[/noparse]basicstamps] Conductive Epoxy
    >Date: Wed, 23 Aug 2000 06:25:23 -0700 (PDT)
    >
    >This discussion on Conductive Epoxy I find quite
    >timely. I have finished assembly of a fairly large
    >solar array panel (3'x4') into a frame. The next step
    >was to attach four power lead from it (two 6-volt
    >outputs).. I was assuming I could solder directly to
    >the back of the panel, but now am rethinking this
    >decision in that I may damage the array.
    >
    >With the Conductive Epoxy.. Will it allow for a
    >current of say 2-5amps to pass through it, reliably?
    >Can I use a #8 wire with it? What would be the maximum
    >droplet size I could use? Once applied and cured,
    >should I protect the connection with a standard,
    >non-corrosive epoxy? What are it weather
    >characteristics (will it run is cold to hot ranges of
    >-30f to +110f)?
    >
    >Thanks
    >
    >__________________________________________________
    >Do You Yahoo!?
    >Yahoo! Mail - Free email you can access from anywhere!
    >http://mail.yahoo.com/
    >
    >
    >

    ________________________________________________________________________
    Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
  • ArchiverArchiver Posts: 46,084
    edited 2000-08-26 17:49
    > Try mixing graphite with the epoxy it should work depending on your loading.
    >

    I always use rear-window demister repair paint. Its built to handle very high
    and low temperatures. You should be able to buy it at hardware stores or car
    accessory shops.

    Dave
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