Color your world with these water-based inks that are fade-resistant and do not bleed. They are formulated to stamp on absorbent papers, but they are slow drying, which makes them great for embossing techniques on coated and non-absorbent papers. Plus, they have a longer shelf life than most ink pads! They are acid-free, non-toxic, pH balanced and archival quality. Conforms to ASTM D4236.