KWZ Iron Gall Turquoise is an ink that goes on as a bright turquoise and then quickly oxidises to a dark teal. It's like magic happening in front of your eyes. Typically iron gall inks fall into more sombre colour families but KWZ has cornered a niche where they offer iron gall inks in a much wider colour range. Good on them.
I first saw this ink reviewed on Matt Armstrong's Pen Habit blog and I knew that I had to try it for myself. In the US this brand is sold by Vanness Pens but I opted to order directly from KWZ in Poland. I felt that this was a cheaper option (US$10.67 per bottle vs. US$14), especially for someone living outside of the US. The process worked well even if it was a little unconventional. You fill out an online inquiry form and then wait for a PayPal invoice to be sent to you. After you pay the invoice you can expect to wait two to three weeks for your package to show up.
As you will see in the images below, I think that the ink was worth the wait.
Shading: Yes, from a Yama-Dori like teal to a very dark green-blue.
Bleed Through: Very minor spot bleeding in the broadest of nibs on Copy Paper.
Show Through: Minor show through on Copy Paper but it wouldn't prevent me from using it.
Saturation: This ink is quite saturated without the finicky properties that you get with a highly saturated Noodler's or Private Reserve.
Sheen: My writing samples didn't sheen but I've seen pictures of others that did.
Water Resistance: The teal component isn't water resistant but the underlying grey, iron gall component is left behind and is perfectly legible.
Drying Time: Slightly better than average, 20 seconds using an EF nib on Rhodia.
Flow: No complains, the characteristics are in line with other good quality inks. No hard starts experienced.
Colour Make Up
The ink trace shows how the turquoise / teal component separates out from the underlying grey of the iron gall component.
This ink is in good company with this collection of teals.
I can't say a negative thing about this ink. It performs well on the test papers, is legible after taking a bath, shades when used on good quality paper, and is a killer colour. It even smells like vanilla when you're writing with it!
This ink is going to see regular use in my line up. Thumbs up. Get yourself some.
For other reviews of this ink search Ian Hedley's Pennaquod search engine.