For coatings, plastics, and masterbatch formulators sourcing titanium dioxide from a new supplier, the SR-2377 TiO2 pigment recently added to our auxiliary agent range is worth a closer look before finalizing a purchase order.
Produced by DOGUIDE Group, this rutile-grade pigment combines an inorganic zirconia and alumina coating with an organic surface treatment layer. It is now listed for buyers who need a general-purpose white pigment with consistent hiding power at a competitive cost. Before adding this grade to an approved supplier list, most formulators want to confirm five things: TiO2 content and crystal size, how the coating layers affect weathering and dispersion, which applications the grade is validated for, what packaging formats are available, and how it compares to sister grades already in use.
SR-2377 TiO2 Pigment: Product Overview and Key Characteristics
SR-2377 is manufactured by DOGUIDE Group, described on the product listing as a titanium dioxide producer in China. As a rutile-grade pigment, SR-2377 TiO2 pigment combines good gloss, high hiding power, and good dispersion, with the zirconia and alumina inorganic coating plus an organic surface treatment layer intended to improve weatherability and processing performance.
Key Characteristics
- Good whiteness and excellent gloss for a bright, high-gloss finish across coating systems.
- High tinting strength, which reduces the amount of pigment needed per formulation.
- Super durability from the zirconia and alumina inorganic coating, supporting long-term weathering resistance.
- Good dispersion from the organic surface treatment, easing incorporation into paints, inks, and plastics.
Technical Specifications Buyers Should Check on SR-2377 TiO2 Pigment
Formulators comparing rutile TiO2 grades typically start with TiO2 content and crystal size, since these two properties drive opacity and light-scattering efficiency. The technical specifications listed for this grade show a TiO2 content of at least 94%, a rutile content of at least 98%, and a 0.3 micron crystal size — values generally associated with strong light scattering in white and pastel coating systems.
A CIE L* value of at least 97.5 gives formulators a brightness benchmark for checking batch consistency. Oil absorption of 18 to 22 g/100g and water demand of 26 cm³/100g pigment provide reference points for estimating binder demand across solvent-based, powder, and waterborne systems. Specific gravity is listed at 4.0 g/cm³, bulk density at 1.1 g/cm³, and pH at 7.0 to 9.0.
Classification Standards
SR-2377 is classified as ISO 591-1:2000 (E) Type R2 and ASTM D 476-00 Type V. Buyers switching suppliers can use this classification to cross-check SR-2377 TiO2 pigment against equivalent rutile pigments from other producers under the same recognized ISO 591-1:2000 classification system.
Applications for SR-2377 TiO2 Pigment
According to the product listing, this grade 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, and plastics.
For composite material buyers who also purchase pigment pastes or masterbatch for coloring FRP parts, gelcoats, or plastic components, this breadth of validated applications means the same pigment lot can potentially serve more than one production line, which can simplify supplier qualification.
Packaging and Sourcing Considerations
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. Buyers ordering SR-2377 TiO2 pigment for a trial batch or a smaller production run typically start with the 25 kg bags, while formulators running continuous production lines can move to the 500 kg or 1000 kg bulk bag format to reduce packaging waste and per-kilogram freight cost.
Because titanium dioxide pigments should be stored in dry conditions and used within the supplier’s recommended shelf life, matching packaging format to actual consumption rate also helps simplify inventory rotation.
This grade is one of several rutile titanium dioxide options in our auxiliary agent range, alongside R-996, which gives formulators a point of comparison when qualifying a second TiO2 source for supply continuity.
Before finalizing an order, buyers evaluating SR-2377 TiO2 pigment for a new coatings, plastics, or masterbatch formulation should request the current technical data sheet, safety data sheet, and a certificate of analysis for the specific production batch.
Frequently Asked Questions
Is SR-2377 TiO2 pigment suitable for plastics and masterbatch, not just coatings?
Yes. The organic surface treatment on this grade improves dispersion in polymer melts as well as liquid coating systems, so it is listed for masterbatch, rigid and flexible plastics, and rubber compounding in addition to paints, inks, and paper coating.
How does the zirconia and alumina coating affect performance?
The inorganic coating layer is intended to improve weathering durability and reduce photocatalytic chalking compared with uncoated titanium dioxide, while the outer organic treatment layer is intended to ease wetting and dispersion during high-shear mixing.
What packaging and order quantities 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 confirm current minimum order quantities and lead times for your region.
How does SR-2377 compare to other rutile TiO2 grades on ChemicalsStore.com?
This grade sits alongside options such as R-996 in our auxiliary agent range. Comparing TiO2 content, crystal size, and oil absorption side by side is a practical way to confirm whether SR-2377 TiO2 pigment or a comparable grade is the better match for a specific formulation.
ChemicalsStore.com sources pigments, resins, glass fiber, and processing additives for overseas composite material buyers, FRP factories, boat builders, pipe and tank manufacturers, and formulators who need one-stop sourcing support, technical documentation, and responsive customer service.
Explore our product page: SR-2377 TiO2 Pigment
You may also be interested in: R-996 Pigment, Auxiliary Agent Products, and Resin Products.
Send us your target TiO2 content, crystal size, and packaging format at info@chemicalsstore.com, and we will help you confirm stock and get a quote for SR-2377 TiO2 pigment or a comparable rutile grade.
