Paint
How Calcined and Hydrous Kaolin Are Used in Paints and Coatings
Hydrous kaolin, also known as China clay, plays a significant role in the paint and coatings industry primarily as a filler and extender. It is valued for its ability to increase the opacity of paints, improving coverage and reducing the need for multiple coats.
Often used in interior paints, hydrous kaolin is cost-effective and eco-friendly, offering a matte or satin finish that is ideal for decorative and general-purpose coatings. Additionally, it helps to improve the weather resistance of paint, protecting against fading and cracking over time, making it a popular choice for non-toxic and safer interior applications.
Hydrous Kaolin in Paint and Coatings
Key Features
- Gloss and Brightness: Significantly enhances shine for premium, high-quality finishes.
- Durability: Increases abrasion resistance for longer-lasting coatings.
- Coverage: Provides smooth, even application for better coverage.
Performance Enhancers
- Weather Resistance: Improves paint durability against UV degradation, fading, and cracking.
- Non-Toxic: Eco-friendly, safe for interior and child-safe applications.
Common Uses
- Interior paints with matte or satin finishes.
- Economical, mass-produced paints.
- Extender in general-purpose applications.
Calcined Kaolin in Paint and Coatings
Key Features
- Gloss and Brightness: Improves gloss, creating shiny, high-quality finishes.
- Durability: Enhances abrasion resistance and mechanical strength.
- Coverage: Provides smoother, uniform finishes.
Performance Enhancers
- Weathering Resistance: Superior resistance to UV, humidity, and temperature changes.
- Rheology Modifier: Controls consistency and prevents sagging.
Common Uses
- Premium coatings with glossy finishes.
- Exterior paints with enhanced durability.
- High-performance coatings requiring abrasion resistance and smooth surface quality.
Conclusion
- Hydrous Kaolin: Best for cost-effective, everyday applications with matte or satin finishes.
- Calcined Kaolin: Ideal for high-performance coatings requiring glossy finishes, durability, and superior weather resistance.
