How to Select the Right Filler for Paint Manufacturing
Choosing the right filler is a key step in paint formulation, influencing everything from opacity to durability. At 20 Microns, our engineered mineral fillers are designed to meet the performance expectations of modern decorative, industrial, and high-performance coatings. Selecting the ideal filler depends on understanding the application and technical requirements of the paint.
Why Fillers Matter in Paints
Fillers do much more than reduce formulation costs—they enhance critical properties such as whiteness, coverage, rheology, scrub resistance, and film strength. 20 Microns offers a diverse portfolio, including Calcium Carbonate, Talc, Kaolin, Silica, Barytes, Mica, and Wollastonite, each engineered for specific performance benefits.
1. Determine the Paint Type
The first step is identifying the paint category:
• Decorative & Architectural Paints
These paints require brightness, smoothness, and high opacity. 20 Microns’ Calcium Carbonate, Talc, and Kaolin grades help improve coverage, surface finish, and whiteness while enhancing overall consistency.
• Industrial & Protective Coatings
These coatings demand mechanical strength and chemical resistance. Our Barytes, Micronized Silica, and Wollastonite grades offer reinforcement, abrasion resistance, and long-term durability.
• Automotive & OEM Coatings
High gloss and controlled viscosity are essential. Our specialized Kaolin and PCC grades support smooth film formation and improved rheological balance.
2. Particle Size & Brightness
Particle size directly affects paint texture and hiding power. 20 Microns provides fillers with controlled particle size distribution to ensure consistency. For lighter shades, high-brightness minerals such as fine calcium carbonate and kaolin help reduce TiO₂ usage while improving opacity.
3. Oil Absorption & Viscosity Control
Low oil absorption fillers maintain stable viscosity and reduce binder demand. 20 Microns’ Talc and GCC grades are ideal for enhancing flow, stability, and ease of application.
4. Mechanical & Chemical Performance
Coatings exposed to harsh conditions require fillers with reinforcement capability.
Silica enhances hardness
Wollastonite improves strength
Mica provides crack resistance
Barytes boosts chemical stability
Conclusion
Selecting the right filler ensures paint manufacturers achieve the perfect balance of performance, aesthetics, and cost. With its extensive mineral portfolio and technical expertise, 20 Microns supports formulators in creating durable, high-quality coatings across every segment.
