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Showing results for tags 'water resistance resistant'.
I thought I would do a simple test of the properly Permanent blues* I have at hand. The inks tested were Pilot Blue, Platinum Pigment Blue, Noodler's Aquamarine (for Swishers, now discontinued) and Koh-i-noor Document Blue. I have selected Blue inks, as there are lots and lots and lots and lots of Permanent Blue-Blacks out there of varying chemistries. I wanted to do Blue. My exhaustive testing regime consisted of writing samples of all four inks with a FP nib mounted in a pen holder onto Double A Premium copy paper. After letting the ink dry for at least half an hour I then ran it under a