Can you use it in a fountain pen?

Do not use this ink in a fountain pen. This ink has pigments - think of tiny granules of pigment suspended in water. Those granules will clog a fountain pen feed over time. True fountain pen inks have no floating particles. This ink is for dip pens (no ink reservoir, just dip and write) or brush painting only.

Can this be used on smooth bristol paper? I read that sumi ink only adheres to rice paper, but I'm not sure about the validity of that claim.

Well, I've used it on smooth bristol paper, as well as a number of other types of paper and had no problems at all when it comes to the ink adhering to any of them.

Can i put this in a bingo dabber ? and use for poster boards? also if i paint over it would it seep through ?

I wouldn't put it in a dabber for Bingo. It's Chinese liquid stick ink. You want something that is water soluble. Depending on the paint over ink, it might seep through. Mainly a calligraphy/drawing ink.

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Yasutomo Black Sumi Ink (Bokuju) 12 oz.

Product ID: 4099838

Details

Brand
Yasutomo
Global Trade Identification Number
Item Volume
354.88 ml
Package Information
Bottle
Paint Type
Oil

💧Water-resistant with shellac

🕒No grinding, ready-to-use 12 oz bottle

🖤High-quality vegetable soot base

R927

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Description

🖤 Elevate your art with the timeless power of Yasutomo Black Sumi Ink

PURE DEEP BLACK - Crafted from premium vegetable soot for rich, lasting pigment
ECO FRIENDLY CHOICE - Made from natural ingredients, blending tradition with sustainability
TRUSTED BY CREATIVES - Top-rated with 4.7 stars and a cult following among artists
TIME SAVING CONVENIENCE - Skip the grinding—ready-to-use liquid ink in a generous 12 oz bottle
WATER RESISTANT FORMULA - Shellac-infused ink ensures your art stays vibrant and smudge-proof

Yasutomo Black Sumi Ink (Bokuju) is a 12 oz bottle of premium, permanent liquid ink made from high-quality vegetable soot. Enhanced with shellac for water resistance, it offers a rich black pigment that’s ready to use without grinding. Ideal for artists seeking a reliable, eco-conscious ink that delivers deep, lasting color and professional-grade performance.

Specifications

ASIN	B004O7AIUW
Best Sellers Rank	#44,631 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #64 in Drawing Inks
Brand Name	Yasutomo
Container Type	Bottle
Customer Reviews	4.7 4.7 out of 5 stars (247)
Global Trade Identification Number	00031248012722
Ink Color	Black
Item Weight	14.4 ounces
Manufacturer	Yasutomo
Manufacturer Part Number	KF12
Model Number	KF12
Number of Items	1
Paint Type	Oil
UPC	031248012722
Unit Count	1 Count
Volume	354.88 ml
Warranty Description	No Warranty

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R927

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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