Titanium dioxide is the primary white pigment used when a coating needs opacity, clean color and reliable light scattering. The best grade depends on the binder system, exposure conditions and processing equipment—not simply on the highest quoted whiteness.
Why TiO₂ matters in coatings
Well-dispersed pigment gives a formulation efficient hiding power and a stable visual appearance. Surface treatment affects wetting, dispersion, gloss and resistance to moisture or UV exposure.
Rutile versus anatase
Rutile grades
Rutile titanium dioxide is generally selected for exterior and high-durability coatings because its crystal structure and surface treatments support better weatherability, opacity and resistance to chalking.
Anatase grades
Anatase can be a practical choice for protected indoor systems where cost, whiteness and ease of dispersion matter more than long-term outdoor UV resistance.
Application checklist
- Confirm whether the coating is water-based, solvent-based or powder.
- Set a target for opacity, gloss and color tone.
- Consider UV, salt spray, humidity and temperature exposure.
- Compare dispersion energy, oil absorption and final PVC.