Isomars Waterproof Drawing Ink with Dropper – 35ml | Black India Ink for Calligraphy, Art, Technical Drawing | Fade-Resistant & Quick-Drying (Black)

The ink is pigment type similar to that of Uniball. You can do a simple eyedropper style conversation on the Pilot V7 cartridge types and get a super smooth writing light blue shades, waterproof pilot that will run for 100s of pages. Just ensure that the pen you do the conversation on is used regularly or else the pigments might clog the feed. !!Do not use in fountain pens!!

+This is dark waterproof ink. +Unfortunately if you don't refill your fountain pen daily, it will definitely dry and clog the pen. +Once clogged its very difficult to clean and restart the fountain pen. +Again it's ok for people who refils the pen daily like students but not for people who refils once in week.

I am new to using ink in my art and have only used it a couple of times, but I have found it of good quality. Ink flows smoothly, and the result after drying is great. Will buy it in other shades to experiment. Good product at a reasonable price.

Very dark Black colour and very good water proofing ink. But do not use with a regular fountain pen, strictly use only with - 1. Dip pen, 2. Brush. The over all writing experience is very smooth, the ink it self is thick mix water according to the needs. Overall a value for money product.

Nice product. Dark black ink. Like it

Inks are good but on fabric the color seems to fade a little..after a wash.

The ink is rich black and actually waterproof. But it does not work with ink pens. Especially avoid this if you are thinking of using it on an expensive ink pen.

Very nice, easy to use. Helpful for nib work. I really liked it and would recommend it to the art lovers. Go for it.