I have recently purchased the Rohrer and Klingner limited edition Ebony iron gall ink, and I’ve filled one of my Lamy Safaris with it. While iron gall fountain pen ink can be corrosive to pens, and it does change colour over time, it does have a pretty nifty trait: it’s waterproof when dry.

So I made this quick sketch with my Lamy Safari extra fine nibbed fountain pen on a Cass Art recycled paper sketchbook:

And then I added some watercolour to the sketches (note that although this isn’t watercolour paper, the paper in this sketchbook does take light watercolour washes):

As expected, it worked pretty well. Note two things about the combination of iron gall ink and watercolour:

1. The ink must be dry before applying the watercolour.

2. As the water causes the paper fibers to expand, your ink lines may “spread” or display soft edges if you apply watercolour over them. You can see this in both sketches. Different paper will lead to different results, of course.

This was a fun little experiment, and a great way to test out this ink a bit more.

Have you ever used iron gall ink with watercolour in your sketches?