Titanium Dioxide for Paint & Coating – Premium Grades from Chemion AG

*High whiteness, strong opacity, reliable dispersion – powered by chloride and sulphate process technologies*

Introduction

Titanium Dioxide (TiO₂) is the most essential white pigment used in the paint, coating, plastic, and ink industries. Its high refractive index, covering power, and brightness make it the gold standard for achieving opacity, color strength, and UV protection in decorative and industrial applications.

At Chemion AG, we supply two advanced rutile TiO₂ grades, each designed to meet the specific demands of our customers across architectural coatings, powder coatings, industrial paints, automotive, and even aerospace formulations.

Chloride vs Sulphate Process – What’s the Difference?

Aspect	Chloride Process (CTR-10)	Sulphate Process (STR-6)
Feedstock	Chlorine + TiCl₄	Sulphuric acid + ilmenite
Purity & Whiteness	Higher brightness and L* value	Slightly lower brightness, more bluish hue
Environmental	More efficient, modern, lower waste	Older process, more waste-intensive
Particle Control	More uniform, better for gloss & dispersion	Good opacity and hiding, less control
Applications	High-end paints, auto coatings, aerospace	Decorative coatings, primers, paper coatings

Chemion AG Titanium Dioxide Grades

CHEMION CTR-10 (Chloride Process)

CTR-10 is a chloride-process TiO₂ pigment with a ZrO₂ and Al₂O₃ surface treatment and organic coating for optimized dispersion and gloss.

TiO₂ Content: 94.5%

Process: Chloride

Rutile Content: 99.5%

Inorganic Coating: Zr + Al

Organic Treatment: Yes

Oil Absorption: 17.5 g/100g

Average Particle Size: 0.27 μm

pH: 7.5

Density: 4.1 g/cm³

Brightness (L*): 98.3

Tint Tone (b*): 1.65

Key Features:
- High gloss & extreme whiteness
- Excellent dispersion in water- and solvent-based systems
- Superior weather resistance
- Ideal for automotive, aerospace, high-end decorative paints, and powder coatings

CHEMION STR-6 (Sulphate Process)

STR-6 is a sulphate-route TiO₂ with ZrO₂ and Al₂O₃ coating, optimized for decorative paints and paper coatings.

TiO₂ Content: 93%

Process: Sulphate

Rutile Content: 97.5%

Inorganic Coating: Zr + Al

Organic Treatment: Yes

Oil Absorption: 22 g/100g

Average Particle Size: 0.23–0.28 μm

pH: 6.5–8.0

Density: 4.0 g/cm³

Key Features:
- Excellent opacity and hiding
- High brightness with bluish undertone
- Good UV stability
- Economical choice for architectural coatings, primers, paper mills, and powder paints

Packaging & Delivery

- Available in 25 kg multilayer paper-PE bags
- Bulk packing on wooden pallets
- Global delivery with COA, TDS, and SDS upon request
- Custom supply agreements and consolidation available

Technical Support

- Grade selection assistance based on your application
- Viscosity, gloss, and hiding trials for side-by-side benchmarking
- Formulation feedback and optimization
- Regulatory compliance (REACH / ISO / EU standards)

Let’s Get in Touch

For technical data, pricing, or formulation inquiries:
Email: info@chemionag.com
Web: www.chemionag.com

CHEMION AG – Where pigment science meets performance and reliability.