Cleaning Platinum Carbon Residue From Body Of Pen?

[requiescat]

Hello--I'm new-ish (have been lurking) and I made the mistake of using Platinum Carbon ink in a Sheaffer fountain pen that someone passed on to me a while back. I post the cap and had forgotten that the pen tends to leak, as it had been a few years. (I'm not sure why it leaks--at first I thought I was doing something wrong, but my main pen now is a Webster that I handle essentially the same way and it's never leaked.) As a result, because I didn't figure out that I should just give up on the enterprise and flush the pen early, I now have some ink residue on the pen body that I'm having trouble getting off. I've mostly used water with a little soap, but I had this feeling that this particular ink might be harder to remove. (I was originally interested in a waterproof ink for ink-and-wash drawing.) Is there something obvious that I'm missing that I should try?

 

Sadly, I don't know much about fountain pens (although I've been trying to read up on them) and I don't know what the pen is made of, or even what kind of Sheaffer it is. But any advice would be appreciated.

[atypical]

Rotring technical pen cleaner, preferably in combination with ultrasonic cleaning, should -in general- remove most of the dried ink.

The J. Herbin cleaning solution for fountain pens can be used instead of the Rotring cleaning solution, it works equally well.

Other cleaning solutions such as Koh-I-Noor's Rapido-Eze or J.B.'s Perfect Pen Flush might also work. Since I have not tried those, I cannot comment on them.

[requiescat]

Rotring technical pen cleaner, preferably in combination with ultrasonic cleaning, should -in general- remove most of the dried ink.

The J. Herbin cleaning solution for fountain pens can be used instead of the Rotring cleaning solution, it works equally well.

Other cleaning solutions such as Koh-I-Noor's Rapido-Eze or J.B.'s Perfect Pen Flush might also work. Since I have not tried those, I cannot comment on them.

I bet I can get a hold of one of the above. I'll give it a try--thanks so much for your help!