Platinum doesn’t offer huge variety of inks. Of course, there’s their Mix Free ink set that allows you, in theory, to create almost infinite number of colors. Not everyone likes mixing though. I don’t. Apart from their Mix Free inks Platinum’s developed Pigment inks. Western companies should learn from them – the ink is usable, if doesn’t have flow issues ansd it doesn’t cause feathering. It tends to stain the plastic and may be difficult to fully clear from the feed. These satins however doesn’t cause clogging. If you leave the pen filled with pigment ink uncapped it tends to cause skipping.
The color is extremelly boring but doesn’t fade with time. Pigment Ink is permanent and fully waterproof.
Drops of ink on kitchen towel
Tomoe River, Kaweco Classic Sport, B
Leuchtturm 1917, Kaweco Classic Sport, B
Oxford, Hero 5028, stub 1,9
Clairefontaine, Kaweco Classic Sport, B
Water resistance – after soaking Clairefontaine paper two days. Photo taken with smartphone (white balance is a little off)