Platinum carbon ink bottle ink black 60cc (japan import)

The ink is waterproof. No bleeding marks. The black colour looks so good! You can use it for sketching or write journals. Maintenance is key to keep the pen safe without clogging. If you’re too lazy, use cheap fountain pen. I google translated the Japanese on the box to English in the image, check it. I love the quality of the ink.

I tried if its water proof on a normal paper .It is good.The ink is smooth and dark black and dried very fast.Its a Very Good buy and one can go for it. ( My research of the youtube showed that its the best water proof black ). However , normal paper ,if its written on both sides and soaked in water ,it can bleed through the ink and make the writing illegible.Hence , for proper water proofing you need to use good quality paper as well. The packing was good and got the delivery as expected in time.

As always lets get the problem out first this ink is hard to clean in pen and I mean it. Also it being a carbon ink means that you will require to clean and maintain your pen at much frequent intervals than normal thus the warning of title. Now good bits and there are alot for those who can get over cleaning. First its a carbon ink and will work on most papers infact it has less bleed than my Sheaffer skrip black. Second its permanent ink, tried water, vinegar, soda and alcohol non work so yeah your writing is gonna be safe. Third is color, simply put is dark black with no hint of grey or violet (looking at you skrip). Fourth, this may vary from user and pen but the ink has high flow meaning to say is wet writer. It has good dry time on most papers (I use simple A4 sheets and registers). Last value.....for me it was worth the money I spend as I needed waterproof ink and the dark black is very nice plus considering that a bottle lasts long I can be confident of investment. Go try if you can but be warned cleaning will require you a lot of effort.

Been using this ink in my TWSBI ECO extra fine nib pen as an experiment. Expected it to cause clogging issues since it's an EF nib and this is a carbon based ink. To my surprise there have been 0 issues. Also, it's absolutely waterproof and is one of the darkest inks out there(beaten only by platinum chou kuro ink). So it's absolutely fantastic for sketches and artwork with watercolour washes or even ink washes. Fabulous ink. 4.5/5

Great waterproof ink, not as dark as you expect but still it's great if you're a regular user.

I love the darkness of the ink. The ink works well with fine nib and medium nib pens. However, since it is a pigmented ink it dries fast and might stop ink flow when not in use for months. So try to keep the fountain pen filled (full) with ink when not in use or wash it off completely. Do not let the ink stick on the sides of the convertor when not in use for months. If fill the ink regularly everytime it finishes it will not cause any problems.

Comes with a reservoir inside the bottle, the ink stands true to the quote “Darker then your heart”. Got this for sketching and I see why this is infamously popular with other artists. Unlike Indian inks this dries a bit slower (takes 40 seconds if you’re writing) but once it does, it is rather waterproof and is permanent. Can be worked with watercolours and does not smudge. Will highly recommend for watercolour and calligraphy artists alike.

Waterproof...ink flow is also good