Increased durability with TiO2
Durable DuPont™ TiO2 grades are designed to provide maximum chalk resistance, gloss and color retention.
Great Chalk Resistance with TiO2
Chalking occurs as increased amounts of organic binder are removed from the surface of the film, leaving behind exposed TiO2 and extender particles. Since these particles are white, this produces a powdery, chalky appearance. This causes color change and reduces gloss.
Rutile TiO2 is inherently more chalk-resistant than anastase as it absorbs significantly more UV-A ultraviolet radiation, converting it into relative harmless energy in the form of heat and protecting the organic portions of the paint film from UV degradation.
When it comes to durability, not all TiO2 grades are the same. Durable DuPont™ TiO2 grades are designed to provide maximum chalk resistance, gloss and color retention. This is done by encapsulating the pigment particles with a thin, uniform layer of an electrical insulator material.
Excellent paint film durability begins with selecting the right ingredients for the job. By selecting a durable TiO2 grade, you can easily get real improvements in gloss retention and chalk resistance. As seen in the above picture, DuPont has the technology to insure durability of its coatings, by surrounding the pigment with the coating in a uniform way.