Is this a washable, non-staining blue?

I'm not sure what you mean by "washable" as I wouldn't consider any ink washable. If you're asking whether this ink will stain your demonstrator pens (like the infamous Noodler's Bay State Blue), it won't. I've used this ink (my favorite blue by the way) in my TWSBI ECO, TWSBI 580, and Pilot Custom Heritage 92 and have never had a problem with staining. It is not permanent on paper and will smear/run if exposed to water. Hope this helps.

Is this a washable, non-staining blue?

I highly doubt that it is washable or nonstaining, although Ive never tested that. This brand of ink offers vibrant colors that are pretty intense. It's my favorite ink by far, but I'm guessing it's pretty permanent.

How long does a bottle last?

That depends on how much you write. The bottle is 50ML and your average cartridge converter holds 0.8ML so figure 1ML per fill on by the time you wipe off your nib after filling I fill my pen on about 1 or two times a day. I tend to write a fair amount every day so a bottle of ink last me around a month and a half your mileage will vary depending on pen paper writing style etc.

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PILOTIroshizuku Fountain Pen Ink – 50 ml Bottle – Kon-peki Deep Azure Blue (Japan Import)

PILOTIroshizuku Fountain Pen Ink – 50 ml Bottle – Kon-peki Deep Azure Blue (Japan Import)

4.8/5

Product ID: 1622788

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Details

Brand
PILOT
Package Information
Bottle
Paint Type
Alcohol
Item Volume
50 Milliliters
Global Trade Identification Number

🌊Kon-peki deep azure blue shade

💧50 ml premium ink volume

🇯🇵Authentic Japan import quality

Description

💼 Elevate your signature with Japan’s iconic deep blue ink — because your words deserve the best.

SMOOTH FLOW FORMULA - Engineered for flawless writing performance with minimal clogging or skipping.
GENEROUS 50 ML BOTTLE - Long-lasting ink supply to keep your creativity flowing without interruption.
VIBRANT DEEP AZURE HUE - Stand out with the iconic Kon-peki blue that commands attention in every stroke.
COMPACT STYLISH DESIGN - A sleek 3.74 x 3.35 x 1.5 inch bottle that looks as refined on your desk as your pen.
AUTHENTIC JAPANESE CRAFTSMANSHIP - Experience the precision and quality that only genuine Pilot Iroshizuku ink delivers.

Pilot Iroshizuku Kon-peki Fountain Pen Ink is a 50 ml bottle of premium deep azure blue ink imported from Japan. Renowned for its vibrant color and smooth flow, this ink combines authentic craftsmanship with a generous volume, making it ideal for professionals who value precision and style in their writing instruments.

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Smooth transaction and product arrived in perfect condition.

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Great experience from order to delivery. Highly recommended!

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