Platinum Blue-Black. This is a blue-black ink, but with the emphasis on “blue.” It’s not a traditional gray- or green-leaning blue black; instead it’s more of a dark blue. Platinum Blue-Black performs well on regular paper; it’s attractive; and it’s water-resistant. Best of all, it’s very easy to clean from a pen.
Why doesn’t everyone use this ink?
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Fountain Pen Follies 
I should try this! It looks like a good candidate to maybe even replace my staple, Herbin Bleu Nuit. Is it so low-maintenance that I could just set it and forget it?
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I think so. Maybe not Serenity Blue or Bleu Nuit level, but easily three months.
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I’d sign checks with that stuff.
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Me too!
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Nice review. Another blue(ish) ink to add to the list. The only saving grace seems to be that it hasn’t landed in the UK yet. Then again, it’s probably only a matter of time…
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Let me be an enabler… 🙂
Cult Pens have had it in cartridge form for quite a while. I know this because I have Too Many Preppies. I can’t remember when I first took a look at the bottles, but they’ve had those for a while. The 0.2 and 0.5 Preppies have been fine with it but I haven’t used it in anything else so far. I’ve been using it for the last year because I wanted a permanent ink for keeping a migraine diary, and while it’s not completely waterproof in that it will run, there’s a core that remains legible. Looks nice on the Optik paper in a Black n’ Red notebook.
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Thanks I’ll check it out. 👍
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Oh no. I do NOT need any more inks, but I especially don’t need any more blue-black or blue inks. But now I want both the Platinum Blue-Black and the Sailor Souboku. Hmmm. *ponders* Yep, pretty sure I can justify getting both because I don’t have any water-resistant or waterproof blue inks. Yay! Thanks for this!
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It is like we are twins…. 🙂
Now, have you tried KWZ Iron Gall Blue #5?😉 😆
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Twinsies!!
I’m pretending I didn’t see your question, you temptress of blue-black inks! 😂 But no, I’ve only tried one iron gall ink – an Akkerman that I can’t remember the name of and it was really hard to clean out of my pen although reviews I’d read said it was easy. Almost thought I’d ruined my Platinum Lake Kawaguchi (Yikes!), but I eventually got all the ink out. I’ll put it on my inks-to-try list.
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If it was a version of Diamine Registrar’s Ink, then yeah. That’s so high maintenance I won’t use it either. 😊 Most KWZ iron galls (notable exception is the archival KWZ IG Blue Black) are pretty low maintenance. I’m really focused on that myself so my reviews always look at that. Platinum Classic line is also on the low maintenance side. 😊
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It was Akkerman 10 Akkerman Ijzer-galnoten Blauw-Zwart. I remember loving the color and of course Akkerman comes in those really cool bottles so I obviously got a whole bottle instead of a sample. I’m not sorry because I do love the bottle. I should try it again in one of my less-expensive pens like one of my Jinhao Shark pens.
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I discovered Platinum Blue-Back when cartridges of it were provided with a new Nakaya pen. I love it and use it in all my Nakayas.
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Thank you! My friend was just asking if that’s the cartridge that came with new Nakayas.
I love it, too — there’s something about it. 🙂
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I’ve never tried the blue-black before, and I love Platinum’s carbon/pigment inks. It looks very close to Sailor’s Jentle Blue (another favorite), is that right?
But… “The Platinum pigment ink lineup is tiny, containing only Carbon Black and Blue-Black.” I beg to differ, my favourite waterproof blue is Platinum’s nice mid blue…
https://www.wonderpens.ca/Platinum_Blue_Pigment_Ink_60mL_p/inkc-1500blue.htm
And they have a sepia, which looks great on cream Tomoe River…
https://www.wonderpens.ca/Platinum_Sepia_Pigmented_Ink_p/inkc-1500sepia.htm
I’ll have to give the blue-black a try because of this review though, thank you!!
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Thanks! I’ll change that! 👍 😘
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I have never tried Platinum ink before. The review was informative, and pleasing to the eye. I already have Aurora-Blue Black, and Waterman Blue-Black. Maybe when either of them are used up, I can try the Platinum. I do have Sailor-Kiwa guro and love it. I also have tried Sailor-Sei boku. It was just okay to me in a couple of pens. Then I put it in my Pilot-Prera CM, and loved it. Thanks for another brilliant review!
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The Platinum blue-black is not an pigment ink, it‘s an iron-gall ink. That‘s why it performs so well on cheap paper.
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Hi Dietmar. Thanks for bringing this up, because I used to think Platinum Blue-Black was iron gall, myself. No idea why. Maybe they changed the formula? 🤷🏻♀️ But now, at any rate, Platinum Blue-Black is definitely a pigment ink. It says so right on the box: “water-based pigmented ink for fountain pens.”
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Hi Laura, it says so on the box, but it‘s still an iron gall ink. Typical smell. Check it on gouletpens or do an internet search. I have a number of IG inks like KWZ oder Diamine Registrar‘s. I love how they perform, crisp lines, sometimes a bit dry.
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Hi Dietmar. Well anything’s possible. Maybe mine’s different than yours. 🙂 Hey, though, it’s very nice to meet a fellow fan of iron gall inks! Sometimes I feel like the only one. 🙂 Quickly, I’m not a fan of the registrar’s inks end of the spectrum as much as the more modern or lighter iron galls, like iron gall inks from KWZ and Platinum Classic. I also still use the old Lamy and Montblanc iron gall blue blacks I’ve used for years. And Pelikan’s. In terms of blue iron gall inks, my favorite is probably KWZ Iron Gall Blue #5. It’s a very gentle iron gall ink and a wonderful color. I think the blog has a hashtag for iron gall ink, if you want to look around.
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My favorite is KWZ IG Gold. It‘s nice to see how the yellow transforms into a deep sepia within seconds. I‘m actually more on the darker side. Don‘t like Platinum Classic Citrus, IG concentraction is too low…BTW Liked your review of the new Sailor Souboku. My bottle will arrive next week. Hard to get them in Germany…
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Laura, Dietmar is right, your Platinum Blue-Black is an iron gall, not a pigmented ink. Please compare the label of your bottle to this one.
Gouletpens states: “Note: The outer box may incorrectly read “pigmented” but the ink is not pigmented. It is dye-based, and is correctly printed on the bottle label itself.”
Maybe something got lost in translation from japanese… Anyway, you should change your review accordingly.
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How might it perform against Pilot Blue-Black?
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Excellent question, Jen. I was hoping someone would ask, after yesterday. It can’t hold a candle to Pilot Blue Black. Pilot Blue Black is a far superior ink. Pilot Blue Black is the ink for all who wonder, Why isn’t everything the color of institutional blue-gray carpet tile squares? Why can’t everything I write evoke the atmosphere of a Social Security office in a strip mall in suburban Chicago? Why can’t I just let everyone know I’m working for the clampdown.
No, seriously, Platinum Blue-Black is bluer. I like it better.
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Thank you for this. I am excited to try some. It sounds ideal for a pen that is in regular use and it has a lovely inky blue look (surprisingly enough).
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It’s really so nice, as a standard blue ink with some water resistance. Good for work, good for everyday use. I’d love to hear your thoughts if you try it.
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I use rhis ink every time I am sure I will not deplete my precious stocks …
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I may be the last person to know about this ink. 😊
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Last but one!
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