JOperation this ink to write a little about everything and jen am very satisfied. The color is very dark, especially with a fountain pen rather thick. The drying time is quite fast, it resists rather well to water (although I have not really tried to ruin the paper on which I write, it rather well despite my tests with tap water and saliva). My only complaint is the bottle that has a really convenient form for the filling of a fountain pen with a pump, jOperation a syringe with a long needle, this is easier and faster, and I can completely empty the bottle without risking den overturn.
