Gamblin Artist's Oil Colors Titanium White 16 oz. can

Titanium White: Reflects 97.5% of all available light. Monet would have loved Titanium White because he wanted his paintings to look soft, like velvet. Most opaque white, perfect choice for direct painting but difficult for color mixing because it takes so much color to tint Titanium. Consider using Titanium-Zinc White.
Pigment: Titanium dioxide and a small quantity of zinc oxide (PW 6, PW 4), Vehicle: Alkali refined linseed oil
Lightfastness I, Series 1, OPAQUE