Titanium White #118 is heavily pigmented with titanium dioxide white pigment. Nova Color Gesso #200 has less of this white pigment. Gesso #200 also contains calcium carbonate (also known as whiting or marble dust) that gives it a flat (non-shiny) and toothy (faintly gritty) surface. Gesso #200 is also less opaque than Titanium White #118.