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 Ruby was given to me by Mmg112 – thanks!
I believe Ruby is a special release for the Sakura Fountain Pen Gallery in Belgium but I’m not 100 % sure. The color of this ink is acceptable although lack of good lubrication and average flow won’t make me buy a bottle. It’s average ink. Personally I think you’ll easily find more interesting red inks on the market.
Drying time: rather reasonable. 10-15 seconds on Rhodia, 5 – 10 seconds on absorbent paper.
Clogging issues: None experienced. The ink may dry in the nib but only after few minutes. You can leave the pen uncapped for 2-3 minutes and everything should be fine.
Feathering: some experienced on Moleskine.
Bleedthrough: almost none.
Water resistance: this ink isn’t water resistant.
Drops of ink on kitchen towel
Rhodia, Jinhao x750, medium nib
Leuchtturm 1917, Jinhao x750, medium nib
Moleskine, TWSBI 580, M
Linen paper, TWSBI 580, medium