These gouache paints are handmade right here at Push/Pull using lightfast pigments, mica, honey, gum arabic, and essential oils. Each paint comes in a recycled bottle cap collected by the community. White is Titanium White PW6 and that's it. Titanium is one of the most difficult pigments to work with when making paints, but we were determined to create an opaque dry gouache. After a few failures we mastered the production and are thrilled with White. This paint will cover inks, add highlights over watercolor or other gouache and is great on dark papers.