Let’s take a look at three PenBBS inks: 44 Peacock Blue from Season 4, 66 Sea Blue from Season 6 and 111 Shanghai from Season 10.

Swabs:

Left to right: Peacock Blue, Sea Blue and Shanghai.

Writing samples:

Let's take a look at how the ink behaves on fountain pen friendly papers: Rhodia, Tomoe River, and Leuchtturm.

Dry Time: 30-40 seconds

Water Resistance: Low-Medium

Feathering: None

Show through: Medium

Bleeding: Peacock had medium bleeding.

Other properties: Low-medium shading

On Staples 24 lb copy paper there was lots of feathering in every nib size as well as some bleeding.

Peacock Blue is similar to Diamine Thunderbolt.

Sea Blue is close to PenBBS Break.

Shanghai is similar to PenBBS Cane Yellow.

The first two inks had an average flow and Shanghai had a dry flow.

Overall, Peacock Blue is my favorite out of the three just based on color but Sea Blue is the best behaved.

Disclaimer: All photos and opinions are my own. This page does not contain affiliate links, and is not sponsored in any way.