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black residue on fingers???

Don't know if this helps but, my friend plays an acoustic six string that has an ebony fretboard. Every time he plays it his finger tips get black stuff on them.

I've never experienced that before on my bass, but it has a rosewood fretboard.

:confused: :confused:

Your friend's fretboard is probably dyed to look like ebony. Ebony doesn't come off on one's fingers.
 
I get black residue on my fingers, and it has nothing to do with the fretboard. I get it on both hands, anywhere that my hands touch the strings. It happens with basses and guitars, often but not all of the time. I'd like to know what causes it and what can be done to prevent it.
 
I think it's just string gunk. I get it too, but only from older strings, or the strings on basses I play all the time. Bonus: it smells bad too!

Jamerson said the dirt keeps the funk. Don't worry about it.
 
It has happen to me with bronze phosphor acoustic guitar strings - I think they were Guild strings, and sweat and dirt doesn’t help either.

But on my basses it’s never happen with steel or nickel strings.

FWIW: I’ve tried a lot of bass strings over the years, but kept going back to D’Addario bass strings. I’ve been using D'Addario EXL170s bass strings for years now and love them.
 
Nickle is a good chemical reaction for staining skin black, as is stainless steel as it has a small "sealed" nickel content in it.
Its not an alergic reaction or the skin would be tender and reddish, it is a straight chemical reaction with the skin.

Our body secretes oils, sebum is common on the fingers. It does not come from the fingers, it comes from where we touch....our hair is a good source, as is our face.

So as the finger presses the string the oils tarnish in the reaction to blacken or darking the skin. Other things such as sweat and dirt can be included in the mix.
As has been said, keep the strings clean, keep the hand clean and see if that helps. If you run a white cloth under the strings you will see how clean your strings really are.

Gin is a great string cleaner, it is a clean spirit, it will leave you strings literally 'squeeky' clean......most bars sell gin so it is easy to get a hold of a drop, plus you can drink what you do not use.....so one for the bass and one for you.:)
 
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I just put on a new set. I had the same strings on my upright for about 30 years, never got black fingers. Well I figured it was time and slapped on the new strings and Bingo! Black fingers! It's a bit oily, not much, more like graphite powder.
Is it possible that some new strings have a light graphite coating, maybe to protect them?
This is the first day with these strings and I got major black fingers... I guess it'll get less as time goes on .
I'll check this post after a few days and give an update.