Zest-it® Artists Fountain Pen & Nib Ink Cleaner
Zest-it Fountain Pen Cleaner is excellent for cleaning Fountain Pen Nibs and can also be used for writing accessories and ink wells.
Soak the nib section for as long as necessary to dissolve the dried encrusted ink from the nib and flush its inner workings.
Water rinse and repeat as required.
Any nib units and pen parts that cannot be separated may need longer soaking. When clean and free from dried ink, water rinse, dry and reassemble.
The solution can be re-used many times for nib cleaning, it may look very dirty but it will still work.