Robert Oster Graphite

Robert Oster is new player in fountain pen ink market. He operates through retailers worldwide. The inks are sold in 50 ml PET bottles with a tightly secure twist cap. I don’t know who makes the inks for the shop, but the colors look interesting and fresh. At the moment Robert Oster inks are available in billion colors – I lost track how many.

Sample of Graphite was given to me by Mmg112 – thanks!

The ink is rather nice and quite interesting – it’s slightly green-blue dark grey. Not easy to describe, to be honest. There’s also some muted red sheen.

Flow: good and it comes out of the pen decently wet

Saturation: good

Lubrication: the ink is well lubricated with a smooth feel on the page

Drying time: Not so short. 20-25 seconds on Rhodia, 15-  20 seconds on absorbent paper.

Clogging issues: None experienced.

Feathering: some experienced on Moleskine.

Bleedthrough: almost none.

Water resistance: this ink isn’t water resistant.

Drops of ink on kitchen towel

Software ID

Color range

Maruman, Hero 5028, stub 1.9

Leuchtturm 1917, Jinhao x750, medium nib

CIAK, Hero 5028, stub 1.9

Water resistance
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