SR-159 is a kind of rutile titanium dioxide which is produced by sulfuric acid process. The surface was abio-treated by alumina and zirconia, used a special organic finish for surface modification, it makes the products have the following characters: high bluing, easy disperse, high weather resistance, high covering power, low oil absorption, wonderful system compatibility, perfect rheological behavior etc. It is an oil prone, high quality titanium specially using for plastic. It can be widely used on polyolefin, pvc, ABS, PS and other color master batch, section bar, panel, tube and so on, also can be used on making leather color paste, oily painting and coating etc.