Moonlight white is an archival pigment ink pad. It mimics a dye ink in that it can be used on most surfaces. It can be cleaned off your stamps using any cleaner that responds to dye (water) based inks. We use this when stamping on our metallic cardstock. It is NOT totally opaque, but it tends to be a bit more opaque than most comparable products. For maximum opacity, you can heat emboss. We tend to “boost” our opacity by adding white gel pen accents.