04-02-2015, 11:54 AM
I use graphite for that kind of thing. The stuff I have is in a liquid carrier, is very fine, and makes a huge mess if you get it on yourself. The graphite particles are so small that they soak into your skin leaving a kind of tattoo. Takes days to wash it all off. But it works well, and one tiny (3 oz?) bottle has lasted me for years.
Full of ideas, but slow to produce parts