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.

Produced using the sulfate process, this product undergoes both inorganic and organic surface treatments, endowing it with properties such as a high blue undertone, excellent (easy) dispersibility, strong hiding power, low volatile content, and resistance to high-temperature yellowing. Based on these outstanding characteristics, this product is well-suited for use in high-concentration TiO₂ plastic systems.
| High-Concentration Titanium Dioxide LTR-939(Plastic Grade) | ||
| Index Item | Unit | Executive Standards |
| Titanium dioxide content | % | ≧96 |
| Rutile content | % | ≧97 |
| Inorganic coating | Al | |
| Organic treatment | Yes | |
| Oil absorption | g/100g | ≦18 |
| Color CIEL* | ≧98 | |
| 105℃ Volatile substance | % | ≦0.3 |
| PH Value | 6.0-8.0 | |
| Sieve residue (45µm) | % | ≦0.1 |
High-Concentration Titanium Dioxide is specifically developed for plastic systems requiring high TiO₂ loading and stable processing performance. With excellent dispersibility, strong hiding power, and a high blue undertone, it ensures uniform color distribution and superior whiteness even at high concentration levels.
Thanks to its optimized surface treatment and low volatile content, the product demonstrates outstanding resistance to high-temperature yellowing, making it ideal for demanding processing conditions. It is widely used in polyethylene (PE), polypropylene (PP), engineering plastics, and masterbatch applications, where consistent quality and high efficiency are critical. Bulk supply and customizable specifications make it suitable for large-scale industrial production.
Recommended for: Masterbatch, PVC calendered film, plastic products, Suitable for powder coatings, hot melt coatings, rubber, and related industries.
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.