Titanium Dioxide (TiO2) is a vital white pigment in the paint and coating industry. It provides exceptional whiteness, opacity, and durability for coatings. The ASTM D34 standard supports the chemical analysis of TiO2, ensuring pigment quality for paint production. This article explores the role of ASTM D34 and how it enhances the performance of paint coatings.
TiO2: AN ESSENTIAL PIGMENT IN COATINGS
TiO2 is a white pigment with a high refractive index, enabling excellent coverage with just one coat. It is widely used in architectural, industrial, and automotive paints, offering bright whiteness and UV protection for surfaces.
Nano or submicron TiO2 particles improve dispersibility, reducing the amount of pigment needed. This not only lowers costs but also enhances smoothness, resulting in aesthetically pleasing and long-lasting paint surfaces.

ASTM D34: STANDARD FOR WHITE PIGMENT ANALYSIS
ASTM D34 is a standard for the chemical analysis of white pigments, particularly TiO2. It employs methods like atomic absorption spectroscopy or gravimetric analysis to check pigment purity and eliminate impurities that affect paint quality.
By controlling particle size and dispersibility, ASTM D34 ensures TiO2 achieves optimal performance. The standard also supports surface treatment, improving pigment compatibility with resin systems and enhancing coating durability.
Reference Article: What is ASTM D476 Standard?
TiO2 ASTM Type 5 standards at Vichem
APPLICATION OF ASTM D34 IN COATINGS PRODUCTION
In coating production, ASTM D34 ensures TiO2 meets high-quality standards. TiO2 particles, treated with aluminum oxide or silane, are highly compatible with resins like acrylic or polyurethane, improving color durability and weather resistance.
ASTM D34 reduces costs by optimizing the amount of TiO2 used while maintaining superior opacity. Coatings meeting ASTM D34 standards have smooth surfaces, excellent weather resistance, and are suitable for applications from residential to industrial.

BENEFITS OF ASTM D34 IN THE COATINGS INDUSTRY
Using ASTM D34 offers significant advantages for the paint industry. Paints with TiO2 meeting this standard resist moisture, heat, and UV radiation, extending the lifespan of coated surfaces.
The standard also minimizes material waste, supporting eco-friendly production. ASTM D34 ensures paints meet environmental requirements, making them safer for users and compliant with modern industry standards.
VICHEM – DISTRIBUTOR OF ASTM-COMPLIANT TIO2 IN VIETNAM
Vichem is a leading distributor of high-quality TiO2 meeting ASTM Grade 5 standards in Vietnam. We provide premium products and international-standard after-sales services, including:
- Technical Consulting: Assisting customers in selecting products suitable for printing technology and specific applications.
- Color Matching Testing: Our expert team conducts color-matching tests to ensure printing results meet design standards.
- Practical Application Support: Partnering with customers to integrate pigments into production lines for optimal performance.
For more information about our products, please contact us through the following channels:
📞 Hotline: 0817 901 790
📧 Email: contact@vichem.vn
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🌐 Website: www.vichem.vn
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