Platinum Carbon is archival-quality ink that I’ve reviewed favorably in the past. I’ve reviewed other permanent inks as well, but Carbon stands out for its ability to completely withstand water once dry, making it very friendly to artists who want to paint with washes or watercolors over inked lines. Most other permanent inks permanently stain the page, but leave a residue that can be smeared or tint the color of the wash.
Rating: 4.5
March 8, 2011
Traditional carbon inks were made with soot or lampblack mixed with gum arabic or another binder. The carbon particles would not fade over time, even when exposed to sunlight, and the ink was not harmful to paper. However, it was not waterproof, could smudge in humid environments, and was not at all fountain-pen friendly.
Platinum has re-engineered the carbon ink, though, to solve all of those problems.
Rating: 4.0
February 8, 2011
Platinum Pigment Rose Red is my first experience with pigment-based fountain pen inks. The vast majority of fountain pen inks are dyes dissolved in water or other solvents, but pigment-based inks have micro-particles that are suspended in solution. They are specifically formulated for fountain pens, with particles small enough and solvents benign enough that they won’t clog the feed or interfere with the capillary action of the nib.