Williamsburg Titanium Oil Ground is an oil ground made with Titanium Dioxide and marble dust for the desired amount of tooth and absorbency. Ground in 100% alkali-refined linseed oil. Contains no zinc or alkyd. Just the right amount of tooth and absorbency. Combination of pigment, marble dust and alkali refined linseed oil used to preparea surface before painting and dry to a semi-absorbent, satin finish