Platinum Pens

Platinum Cassis Black Ink Review & Giveaway!

Platinum Cassis Black Ink is one of the 6 newly released “classic ink colors” released in 2017. Platinum Classic inks are a water soluble ink that is manufactured using traditional methods from plants and iron. The manufacturing of these “classic inks” takes more time and no shortcuts are taken to produce Platinum’s 6 new colors. Platinum’s Cassis Black is one of these new classic ink colors.

Platinum Cassis Black Ink Bottle

Platinum Cassis Black Ink Bottle

Another interesting and unique quality of these new Platinum classic inks is when the ink first touches the paper it will start off bright. Then as it starts to dry, due to the oxidation of the ink, the color will turn dark. Platinum Cassis Black ink is a deep burgundy red ink, once its dried and oxidized. However when Cassis Black first is applied to paper, it is a bright vibrant red color, almost a candy apple red, but quickly turns dark. Platinum Cassis Black ink is documental ink as it is UV light resistant as well as resistant to water once fully oxidized.

Continuing reading for a chance to win the bottle of Platinum Cassis Black ink we used for this review.

Platinum Cassis Black ink

Platinum Cassis Black ink

While testing Platinum Cassis Black ink we noticed the following traits, which you may find helpful:

Testing Factors

We used a French made J. Herbin Spiral glass dip pen on Rhodia Dotpad N. 18 paper for this review. The glass dip pen has a tip that is similar to a fine fountain pen nib.

Bottle Size

Platinum Cassis Black ink comes in a standard sized 60 ml. Platinum glass ink bottle. The sides of the bottle are curved, not truly square, which is unique. Each Platinum ink bottle contains an internal ink reservoir which allows the user to get those last few drops of ink when running low.


Platinum Cassis Black ink is a little more expensive than normal Platinum inks due to its manufacturing complexities. Each bottle retails for $25.00, but is available at Pen Chalet for a reduced price of $20.00 for the 60 ml. glass bottle.

Dry Time

The dry time we experienced using Platinum Cassis Black ink with the glass dip pen was approximately 6-7 seconds. Obviously using a larger nib, you may experience a longer dry time. However, this dry time is acceptable for normal every day use of Platinum Cassis Black ink.

Bleed Through

We did not experience any bleeding using Platinum Cassis Black ink during normal use or even during the cotton swab test at its wettest points on Rhodia Dotpad paper.


Platinum Cassis Black ink produced very nice crisp lines. Even during the water test, the lines remained clear and distinct without very much feathering.

Water Test

We ran a wet cotton swab over a dried Platinum Cassis Black ink sample, which produced some color smearing, but no additional bleeding and no real feathering. The lines remained pretty clear and distinct. Therefore, although this ink is not waterproof, but it does have some water resistant characteristics.


Platinum Cassis Black ink will produce some nice shading. Depending on your hand and nib used, the dark wet broad lines will become a deep dark red burgundy color where the lighter, think dry lines will remain a light a pinkish red color. This makes for some very interesting shading during use.

Conclusion about the Platinum Cassis Black Ink

Overall Platinum has done a great job with their new classic inks. Platinum Cassis Black ink has been a great seller and very popular. It shows up dark on paper and has some documental characteristics. The price is in the mid to upper range, but the uniqueness and characteristics makes this ink a worthwhile purchase. The color is a fantastic burgundy when dried and fun to use.

Enter to Win

Enter to win the actual bottle of Platinum Cassis Black ink that we used in this ink review:

a Rafflecopter giveaway

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Eric Aycock
4 years ago

That is a beautiful burgundy! I could totally use this at work and it would still look professional. Thanks for the great review.

Caroline Guo
4 years ago

What a nice colour.

4 years ago

That looks like a lovely ink. I like a good dark red / burgundy for my everyday writing, so this looks like just the thing. I’ve never used a Platinum ink before, so I’d love to try this one.

Chaney Tse
4 years ago

Never had experiences with Platinum inks. I suppose most of their efforts are focused on their pens anyway. Would be interesting to try though.

4 years ago

I love the burgundy in this ink. I’m curious to see how it performs in various pens.

4 years ago

Oooohhhhh….. I’ve been very curious about these new Platinum inks… 🙂

Benjamin R
4 years ago

I have a sample of this exact ink, though I’ve not put it in a pen yet. If it behaves like Platinum Classic Citrus Black (which I do have, and is almost always in one of my pens), a full bottle will be somewhere in my future.

4 years ago

Beautiful color. Love the shading

Michael Elson
4 years ago

I really want to try these Iron Gall inks. Very intriguing.

Andrew Mulnix
4 years ago

This one looks nice

FaithRobin Buchin
4 years ago

This is a gorgeous color! It reminds me of smashed cranberries or Cabernet Sauvignon! One of my favorite colors is PR Blue Suede. Thanks for a great ink review!

FaithRobin Buchin
4 years ago

Gorgeous color! It reminds be of cranberry juice or Cabernet Sauvignon. I love blue colors and my favorite ink is PR Blue Suede. Great ink review, thanks!

Mike Solinas
4 years ago

Very nice color!

Grace K
4 years ago

I’ve been wanting to try these inks!

Patrick T
4 years ago

These new colors are high on my list to try. Seem very different than my go-to Sailor inks.

alek niwczyk
4 years ago

Beautiful color! It should look amazing in a demonstrator pen 🙂