Paint and coating industry is the largest application field for titanium dioxide, especially for rutile titanium dioxide, most of which is consumed in the paint industry. Paint and coating made from titanium dioxide are bright in color; they have high hiding power, and strong tinting strength, and only small consumption is needed. They are also very diverse. The titanium dioxide in paint and coating can protect the stability of the media, and enhance the mechanical strength and adhesion of the paint membrane so that the cracks can be prevented. Titanium dioxide can also prevent the penetration of ultraviolet and moisture, and prolong the lifetime of the paint membrane.