What is the difference between Noodler’s Legal Lapis Bulletproof (waterproof) ink and Noodler’s Air Corp Blue Black near Bulletproof?

The first image is before boiling:

before_boil.jpg

and after boiling for three minutes

after_boil.jpg

The Legal Lapis ink does not fade at all. These inks were purchased from the good folks at pendemonium.com.

I am a happy fountain pen user. There is something magical about the way the pen flows over the paper and the look of the ink on the page. The other day I dripped some water on the page and the ink underneath vanished. It would be very bad to drop my notebook in a puddle.

I placed an order for a bottle of Noodler’s semi permanent Aircorp Black ink from Pendemonium.

This test compares Lamy Blue Black ink and Noodler’s Aircorp Black ink. The Noodler’s ink is described as semi-permanent. I wrote on the same page with both inks using a Lamy Studio pen. Attempts to smudge both is shown with the finger icons. The Nooder’s ink appeared dry before smudging with a moist finger. The Lamy ink had more time to dry and resisted smudging better.

To test for waterproofness, one drop was put on top of each ink. You can see that the Nooder’s ink bleeds in a different color. Both inks survived a single drop of water reasonably well.

before-boil.png

I then boiled both pages for 3 minutes. Here are the results.

after-boil.png

Both inks survived, but the Noodler’s ink stands up much better.