SR-2377 is a rutile titanium dioxide pigment from DOGUIDE Group, produced with zirconia and alumina inorganic coating plus organic surface treatment. This general-purpose grade delivers good whiteness, excellent gloss, high tinting strength, super durability, and strong dispersion, making SR-2377 a reliable choice for coatings, plastics, and masterbatch formulators who need consistent hiding power at a competitive cost.
SR-2377 is manufactured by DOGUIDE Group, a leading titanium dioxide producer in China and one of Asia’s largest TiO2 manufacturers. As a rutile-grade pigment, SR-2377 combines good gloss, high hiding power, and excellent dispersion, with inorganic zirconia/alumina coating and an organic surface treatment layer that improve weatherability and processing performance across a wide range of formulations.
Key Characteristics
- Good whiteness & excellent gloss — delivers a bright, high-gloss finish across coating systems.
- High tinting strength — efficient hiding power reduces the amount of pigment needed per formulation.
- Super durability — zirconia/alumina inorganic coating supports long-term weathering resistance.
- Good dispersion — organic surface treatment eases incorporation into paints, inks, and plastics.
Technical Specifications
| Property | SR-2377 |
|---|---|
| TiO2 Content, % | ≥94 |
| Rutile Content, % | ≥98 |
| Inorganic Coating | Zirconia, Alumina |
| Organic Treatment | Yes |
| Crystal Size, µm | 0.3 |
| Specific Gravity, g/cm³ | 4.0 |
| Bulk Density, g/cm³ | 1.1 |
| Water Demand, cm³/100g pigment | 26 |
| Color CIE L* | ≥97.5 |
| Oil Absorption, g/100g | 18–22 |
| pH | 7.0–9.0 |
SR-2377 is classified as ISO591-1:2000 (E) Type R2 and ASTM D 476-00 Type V, confirming its identity as a standard rutile titanium dioxide pigment suitable for industrial and coatings applications.
Applications
SR-2377 is recommended for a broad range of formulations, including:
- Interior and exterior architectural coatings
- Emulsion paints
- Powder coatings
- Printing inks
- Primer paints
- Paper coating
- Rubber compounding
- Masterbatch
- Plastics
Packaging
SR-2377 is available in 25 kg multi-layer paper-PE bags, as well as bulk 500 kg or 1000 kg bags for larger production volumes.
Frequently Asked Questions
Is this pigment suitable for plastics and masterbatch, not just coatings?
Yes. The organic surface treatment improves dispersion in polymer melts as well as liquid coating systems, so this grade performs well in masterbatch, rigid and flexible plastics, and rubber compounding in addition to paints, inks, and paper coating.
How does the zirconia/alumina coating affect performance?
The inorganic coating layer improves weathering durability and reduces photocatalytic chalking compared to uncoated titanium dioxide, while the outer organic treatment layer eases wetting and dispersion during high-shear mixing.
What packaging and MOQ options are available?
Standard packaging is 25 kg multi-layer paper-PE bags, with 500 kg or 1000 kg bulk bags available for larger production runs. Contact our team to discuss minimum order quantities and lead times for your region.
For background on titanium dioxide pigment grades and classification standards, see the titanium dioxide overview on Wikipedia.
