These pigment based inks dry like dye inks and are permanent on paper surfaces. They are acid-free, archival, and fade resistant. Inks can be heat set on glass, fabric, wood, plastic, metal, and clay. As these inks are fast drying and waterproof, they cannot be embossed with embossing powder. As with any permanent ink, this product contains a small amount of solvent.Our Hybrid Ink refills contain .25 ounces (7 ml) of ink to replenish your ink pad.