Versamark Watermark/Resist Ink Stamp Pad. This versatile ink pad can be used to create a translucent watermark image, tone-on-tone effect on colored paper or as a resist or embossing pad. You can also use it on vellum for a lustrous look. Opt for non-glossy, medium-toned cardstocks to use with this ink stamp pad. The stamp pad is acid-free, water-based and non-toxic.