Blue Cashmere Fountain pen Ink is also available exclusively at:

United States:  Lemur Inks ( )    United Kingdom:  Cult Pens (

Europe: Fountainfeder ( )

Blue Cashmere was originally developed as a powdered fountain pen ink back in 2014 as part of the SuSeMai project by the Th-INKing Outside the Bottle Group on the fountain Pen Network. Blue Cashmere was developed by Kevin Watson and Dave Marshall from the JustWrite Pen Company and the Th-INKing Outside the Bottle Group provided extensive support, advice, testing and feedback.

Thirteen powdered inks were developed by the SuSeMai project but none were ever released for sale.  

Powdered ink had several advantages including the obvious savings in packaging and freight (no glass bottle or water) and fountain pen users could make the ink up as concentrated as they liked in their own empty ink bottles. The powdered inks worked fine but had a fatal flaw. There was no way to ensure the even distribution of biocide through the powdered ink.

The focus shifted to gels and concentrated liquids and the powdered ink idea was abandoned. Most of the powdered inks did not adapt well to the gel concentrate form and sadly, they were lost forever... until now.

Almost 18 months of extensive experimenting and development, made possible by the tireless and enthusiastic testing and feedback from FPN members, ultimately led to the establishment of Blackstone Inks and now Blackstone Ink is resurrecting Blue Cashmere as a conventional liquid ink.

The new liquid Blue  Cashmere ink has all of the characteristics and qualities of the original powdered ink but none of the disadvantages. It's a rich, slightly purple, dark blue free flowing ink that's very well behaved.

If you'd like more information about the SuSeMai project or Blue Cashmere go to and search for 'susemai'

Special Acknowledgement:

Blackstone Inks would not exist if not for the encouragement, assistance and support of the members of the Fountain Pen Network. If you own a fountain pen or have even a passing interest in fountain pens, you'll find all the information you could ever need on the Fountain Pen Network.

You'll also find thousands of friendly, knowledgeable members eager to answer your questions, talk about fountain pens and ink and open up the whole, amazing world of being a fountain pen enthusiast.

Visit the Fountain Pen Network:

About Blackstone Inks:

Blackstone fountain pen ink is a high quality, Australian made fountain pen ink formulated from water soluble dyes with no harmful additives and is pH neutral. Blackstone ink can also be used with a stylus or brushes and is ideal for writing, calligraphy, drawing, washes, painting, and airbrushing.

Blackstone fountain pen ink is packaged in reusable Polypropylene bottles. Polypropylene is one of the toughest plastics in existence and these bottles are practically indestructible. These bottle can be re-purposed as ink carry or storage bottles and Polypropylene is completely recyclable.

Fountain pen ink is traditionally packaged in glass bottles which are expensive to manufacture, heavy to ship and break easily. 

Ink Type: Washable
Feathering: None
Saturation: Medium
Shading: Minimal
Show Through: Medium
Bleed Through: Slight
Container: Reusable polypropylene bottle.
Quantity: 30ml
Cost per ml: 0.333 ml
Suitable for all types of fountain pen, dip pens, brushes and stylus. Ideal for writing, calligraphy, drawing, washes, painting, and airbrushing.
Made in Australia by Blackstone Ink.

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NEW - Blackstone Fountain Pen Ink - SuSeMai Blue Cashmere - 30ml PP Bottle

  • $10.00

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