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I'm looking for a conductive liquid that, after it evaporates, leaves the material that has been exposed to it conductive.

I'd like to use my smartphone with gloves. I do have a pair of professional, expensive gloves, with "smartphone friendly material" on the index finger-pad, but it works dreadfully. I'd like to use the tip of my finger, and not the finger-pad, to interact with the smartphone surface.

So I thought, let's wet the material in some conductive liquid, let it dry, and done!

I did try this approach with colloidal silver and it does not seem to work.

The next on my list is a solution of water with iron rust ( I am unsure about the effect, but I'd give it a try).

Any other ideas? It must be human-safe. Colloidal silver would be perfect (antibacterial properties) if it could be made to work.

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    $\begingroup$ When conductive liquids go dry, the remaining solid residue is rarely conductive. Try stitching a thin copper wire into the fingertip. $\endgroup$ – Ivan Neretin Sep 27 '16 at 21:34
  • $\begingroup$ Possible solution could be achieved with conductive thread/strand - but it requires interaction with the gloves :/ $\endgroup$ – sirkubax Sep 27 '16 at 22:17
  • $\begingroup$ Personally, I'd suggest something like silver paint. I wouldn't use iron oxides because they're not very conductive. $\endgroup$ – Geoff Hutchison Sep 30 '16 at 14:59
  • $\begingroup$ This sounds alot like the X Y problem. Please look at this post and make sure you aren't making the X Y mistake in asking a question. $\endgroup$ – Pritt Balagopal Jul 19 '17 at 2:01

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