JetPens Forums

[Neocaledonian]

The Kuretake No. 8 Fountain Hair Brush Pen is a great drawing tool that ships with Kuretake non-waterproof ink cartridges. Finally used up these original refills, so I could finally test how well this brush pen accepts the waterproof Platinum ink cartridge refills.

The brush tip was soaked overnight in water and Koh-I-Noor pen cleaner to remove all traces of the old dried ink. The old Kuretake cartridge was also cut open to retrieve and save the metal ball bearing which can reportedly be used on newer ink cartridges that lack this feature.

Both refills are similar in size and design, so the Platinum cartridge fit perfectly within the barrel of the Kuretake No. 8 brush pen effortlessly.

The Platinum ink dries waterproof very quickly. As soon as this sample doodle was completed, it was placed under a running faucet. The water stream did not affect the dark rich marks in the slightest no matter how long the sheet of vellum was kept under the flowing water.

Thus, the Kuretake No. 8 brush pen loaded with a Platinum ink cartridge refill proved to be a very effective and versatile drawing tool that can easily lay down waterproof marks of varying line width. Highly recommended for field watercolor kits and sketch crawls.
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"Life is too short to use cheap art supplies"

Sketching thread and art materials review:
http://robotninjamonsters.blogspot.com/

Manga style cartooning and art supplies recommendations for kids:
http://cartoonsketching.blogspot.com/

[Gentian]

Thanks for sharing your tests and discoveries with these! I need to try some of the carbon ink sometime.