Noodler's Black Ink is really popular among fountain pen fans because of its great quality and performance. From what we've looked into, this ink gives a deep black color that even works well with fine and extra-fine nibs. It's said to have "archival quality," meaning it should be somewhat water-resistant and permanent.
But keep in mind, those features can change depending on what kind of paper you're using and how long you let it dry.
A lot of folks like that this ink works reliably across different types of paper, with minimal feathering and bleed-through, even on standard sheets. It's got a smooth flow that makes it nice for everyday writing, though it does take a bit longer to dry. You might want to be careful right after writing, as you could smudge it if you're not patient.
The ink comes in a bottle with an eyedropper, which can be handy if you're using pens that work with an eyedropper. Some people suggest transferring it into another easier-to-use bottle for pen refills, as the original bottle can be a bit tricky.
Although there's one mention of its permanence being an issue, it's mostly described as "bulletproof," meaning it stands up well to water after it's had time to dry on the right paper. Just remember, the water resistance can vary based on conditions and usage.
So, is it safe for all fountain pens? Generally, yes. Its smooth flow and other properties make it compatible with many pens. But it's always a good idea to try it out in a less expensive or more frequently used pen first, just in case.
Some inks can be more acidic or thicker and might not suit certain pens well. Overall though, with regular use and cleaning, Noodler's Black Ink should be fine for your fountain pen.
Just remember to clean your pens regularly and store the ink properly to keep it in good shape, which will help protect your pens in the long run.
