As an egg tempera painter,
As an egg tempera painter, I rely on Rublev’s Deionized Water much like the Italian Renaissance workshops relied on their carefully drawn well water—pure, and essential to the craft. Its absence of mineral contaminants keeps the tempera clean and flows off the brush, allowing the paint film to form with uniform consistency and vibrancy.
For those dedicated to meticulous craft, it can play an important role in working with Rublev’s natural pigments. It will help preserve your tempera painting with clarity, and archival life for generations.