Question asked 2016-12-06 09:52:42 ...
Most recent comment 2016-12-07 11:03:00
Every now and then, I have to make conductive paint with my students. Up until now, I do it with graphite and acrylic binder, which sort of works. Sort of, because the acrylic is an insulator. So basically what I am doing now, is to underbind the paint, so it still conducts current.
I know there are conductive binders though. Ulysses Jackson from Golden suggested polytiophene as a conductive binder, but I cannot find it anywhere. Does anyone know if there is another conductive binder that could work?
Answers and Comments
EditDeleteModerator AnswerWhat are you applying this to? Do you require the resulting paint to be flexible and resilient? If not I would think that graphite ground into gum arabic would work. You could always add a bit of honey (like is done in watercolors) to provide a little bit more flexibility if needed. If your needs are more complicated than this I can reach out to some of the scientists on our board.
EditDeleteModerator AnswerThis is just an idea but have you thought about getting a preprepared conductive paint? I know that you can purchase a pint of conductive paint used for shielding the insides of electric guitars for a nominal price. I almost always shy away from using commercial products for artworks without testing but perhaps this would work in this instance. I will ask around about a conductive binder in case you want to make everything from scratch.
EditDeleteModerator AnswerI have conferred with one of our scientists and it appears that most of the flexible binders will have an insulating effect. The material that Golden suggested is an exception but it is quite cost prohibitive. From what I understand, the important component when using acrylic and other insulating binders is to make sure that you incorporate enough graphite to overcome this effect. I will reach out to another resource here to see if there is a conductive binder that we have not thought about.
EditDeleteModerator AnswerAs far as I can tell, based on the responses I have received, there is no way to do so cheaply if you want to make it yourself and not just use a greater amount of graphite in a more readily available binder. I will ask a few others to see if they can give us any other ideas as this is certainly not our area of expertise..
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