Artists' have relied on Original Permalba® White for superior quality and permanence since 1921. Permalba® White is an exclusive blend of Titanium and other pigments prepared by a special process, developed after extensive laboratory and practical testing. It is acid and alkali resistant and ranks highest among the most opaque pigments with greater covering power. Permalba® White will not yellow with age and will yield tints of true color value and brilliance. Itís smooth buttery consistency dries to an elastic film that has no tendency to crack. Painting mediums do not affect its integrity.