Longtai’s optical brighteners can significantly enhance product whiteness and fluorescence effects, delivering results that are both long-lasting and stable.
Longtai’s optical brighteners can significantly enhance product whiteness and fluorescence effects, delivering results that are both long-lasting and stable.

LTR-919 is a rutile titanium dioxide pigment that has undergone inorganic surface treatment with silicon and aluminum, as well as organic surface treatment. It features excellent whiteness, high weather resistance, and outstanding dispersibility.
| Surface-Treated Rutile Titanium Dioxide LTR-919(High Weather-Resistant Coating Grade) | ||
| Index Item | Unit | Executive Standards |
| Titanium dioxide content | % | ≧93 |
| Rutile content | % | ≧98 |
| Inorganic coating | Si、Al | |
| Organic treatment | Yes | |
| Oil absorption | g/100g | ≦22 |
| Color CIEL* | ≧97.5 | |
| 105℃ Volatile substance | % | ≦0.3 |
| PH Value | 7.0-9.0 | |
| Sieve residue (45µm) | % | ≦0.1 |
As a high-performance Rutile TiO2 for Coatings, this product offers excellent opacity, high gloss, and strong weather resistance. The advanced Si and Al surface treatment enhances durability and dispersion, ensuring consistent performance in architectural coatings, industrial paints, and powder coatings. It effectively improves whiteness, reduces chalking, and maintains long-term color stability under various environmental conditions.
For plastic applications, this grade functions as a reliable Rutile TiO2 for Plastics, delivering uniform dispersion, high tinting strength, and excellent UV resistance. It is widely used in polyethylene (PE), polypropylene (PP), and other polymer systems, where it enhances brightness, improves processing stability, and prevents yellowing during high-temperature processing.
With its balanced formulation, including inorganic and organic surface treatments, this rutile titanium dioxide provides stable quality, low volatile content, and efficient processing performance. It is an ideal choice for manufacturers seeking a cost-effective, high-performance pigment solution for coatings and plastics. Bulk supply and customized specifications are available to meet diverse industrial needs.
Packaging: 25kg kraft paper bag; 1000kg woven bag
Remarks: The above data is for reference only. For specific applications, please contact the supplier. Product specifications are subject to the corresponding inspection report.
Over the years, we’ve built strong and lasting partnerships with clients across the globe. Their positive feedback is the greatest motivation for us to continuously pursue quality and excellence.
We have worked with Longtai New Materials for many years. Their titanium dioxide stands out for its whiteness, opacity, and consistent batch quality. The stable performance has ensured the reliability of our coatings products and strengthened our competitiveness in the market.

We look forward to partnering with you to deliver high-quality titanium dioxide solutions worldwide and explore broader market opportunities together.