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Rutile Titanium Dioxide R1931

R1931 rutile-type titanium white pigment is a universal multi-purpose titanium white pigment. Its surface is coated with dense zirconium and aluminum inorganic films and undergoes special organic treatment. The product design aims to approach the quality standards of similar products from abroad produced by the chlorination method.

It features high whiteness, high gloss, a bluish base tone, fine particle size with a narrow distribution, high ultraviolet absorption capacity, excellent outdoor weather resistance, strong anti-frosting ability, strong covering power and color removal ability, good dispersion and stability. The products made with it have bright colors and high glossiness.

Why Choose Rutile Titanium Dioxide R1931 for Your Formulations?

Rutile Titanium Dioxide R1931 is designed to balance optical performance with formulation flexibility. Its combination of high hiding power, strong tinting strength and robust weathering performance makes it an ideal pigment for a wide range of industries:

  • Architectural & industrial paints: improved opacity and color retention.
  • Plastics masterbatch & color concentrates: stable pigment performance under extrusion and molding.
  • Printing inks: consistent whiteness and printing characteristics.
  • Textile coatings & leather finishes: durable topcoat whiteness and fastness.

How to Evaluate R1931 in Your Lab

We recommend performing comparative scattering/hiding tests, gloss measurement and accelerated weathering (QUV) alongside your current production pigment. Request sample kits and technical guidance from our application lab.

Key Features

  • High hiding power and optimum whiteness for bright, clean shades.
  • Excellent dispersion & pigment stability — minimizes flocculation in formulations.
  • Superior weather and UV resistance for durable outdoor performance.
  • Low VOC, environmentally compliant manufacturing (confirm SDS/COA for specific certifications).

Applications:

R1931 is a high-grade, general-purpose multi-purpose rutile-type titanium dioxide powder. It is widely used in various indoor and outdoor architectural coatings, industrial coatings, powder coatings, as well as plastic color granules, plastic profiles, rubber, high-grade inks and paper-making fields.

Safety and Storage:

This product is safe and comes in a white powder form. During transportation, it should be protected from moisture. When storing, it should be placed in a cool, ventilated and dry place.

When handling, avoid inhaling dust. If contaminated, it can be cleaned with soap and water. For specific instructions, please refer to the corresponding material safety data sheet.

Packaging: 25kg bag

Note:The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.

Technical Specifications

  • Chemical Name: TiO2
  • CAS NO. :13463-67-7
  • EINECS NO.: 236-675-5
  • C.I. NO.:77891, White Pigment 6
  • ISO591-1:2000: R2
  • ASTM D476-84: III, IV
  • Appearance: White powder
  • Specific gravity: 4.1 g/cm3
  • Density: 0.7~1.0 g/cm3
  • Surface treatment: Dense zirconium and aluminum inorganic coating + Special organic treatment‍

Items

Quality Standard

TiO2 Content , %

≥93.0

Rutile Content, %

≥98.0

Color, Compared with the Standard Sample

∆L*(sample-standard)
  ∆s=(∆a2+∆b2)0.5 

Not less than

≥-0.3

≤0.5

Tint Reducing Power,

Compared with the Standard Sample

≥1920

Volatile at 105℃, %

≤0.5

Water Soluble Objects, %

≤0.5

PH Value of Aqueous Suspension

6.5~8.0

Whiteness, %

≥98

Oil Absorption, g/100g

≤18

Frequently Asked Questions

How does R1931 differ from anatase TiO₂ grades?

Rutile grades like R1931 offer superior optical properties (higher hiding power and weather resistance) and UV stability compared to most anatase grades. Rutile is typically chosen for exterior coatings, durable plastics and long-life applications.

What dispersants and milling method do you recommend?

Use polymeric or anionic dispersants tailored to your resin system (e.g., polyacrylate dispersants for waterborne systems; fatty acid esters or sulfonates for solvent systems). High-shear bead milling or three-roll milling commonly achieves best dispersion; optimization depends on the final application.

Can R1931 be used in high-temperature processing?

R1931 is suitable for many standard melt processing conditions used in plastics. For extreme high-temperature applications, please provide your processing window so we can verify thermal stability and suggest appropriate grades or coatings.

What environmental / regulatory documentation is available?

We can provide SDS, COA, and regulatory declarations upon request. Contact our technical team for REACH/TSCA status and test certificates for specific markets.

Do you offer custom surface treatments or coated TiO₂?

Yes — surface-treated and coated rutile grades are available to improve dispersion, conductivity, or UV resistance. Specify desired functionality and we will propose options.

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