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thelip
Full Member


USA
729 Posts		 Posted - 07 Aug 2002 :  23:17:10
Ok, that emate that my friend got (through me) hd the punctured cable. he's a little impatient with the pbcman and trying to make replacemnts and so he ordered some conductive epoxy hoping that the lack of heat would be good. I (long story why it was me and not him) spent forever slowly exposing the leads and now i'm asking if anybody knows much about conductive epoxy in general. I don't know the brand, but it said cures at room temp in 4 hours. Should there be anything i need to know? Like if it cures at too low a temp could that cause a lack of conductivity? I thought that if he used wires to bridge just like if he were soldering but with the glue. Is there any reason why gluing 2 metal objects together wouldn't work? thanks for any ideas.

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mathgeek
Junior Member


USA
113 Posts		 Posted - 08 Aug 2002 :  17:38:54
If you have a multimeter you could use it to test the conductivity of the epoxy or any glue for that matter. Stick two wires into a drop of glue or epoxy (make sure they're not touching) allow it to harden, then hook up a battery to the ends of the wires and use the multimeter to measure the voltage drop, current or resistance of the drop. You could try a bunch of glues and epoxy's and choose the best one.

In answer to your question, conductance is usually dependent on the material having a coherent internal structure. If the epoxy hardens at a high temperature, it is more likely to have a disorderered internal structure and thus will be less conductive. If the instructions say to let it harden at room temp then do that, but hardining it at a lower temp shouldn't hinder conductance.

mathgeek

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