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VERACAL WT is Calcium Carbonate with mean particle size (D50) of 0.9 microns and Brightness of 97.00%. VERACAL WT can be used in applications like, protective coatings, water based decorative paints, wall putties, solvent based decorative paints, rubber mouldings, paper industry. 
 
VERACAL WT can be an excellent choice for PVC window applications, providing several benefits due to its fine particle size, high brightness, and excellent functional properties. In PVC window profiles, calcium carbonate serves multiple roles, including filler, reinforcing agent, and process aid. Here's how VERACAL WT contributes:
Key Benefits of VERACAL WT in PVC Window Applications
1. Enhanced Surface Finish
The fine particle size (D50: 0.9 microns) ensures a smooth, defect-free surface for the PVC profile, improving the aesthetic appeal of the window.
High brightness (97.00%) enhances the whiteness of the profile, making it visually appealing and resistant to discoloration.
2. Improved Mechanical Properties
Acts as a reinforcing filler, enhancing the stiffness, dimensional stability, and impact resistance of the PVC window profiles.
Reduces shrinkage and ensures long-term stability, which is critical for outdoor applications.
3. Cost Efficiency
As a cost-effective filler, VERACAL WT reduces the overall formulation cost by partially replacing expensive polymer resins without compromising performance.
High loading levels are achievable due to its excellent dispersibility, further optimizing cost savings.
4. UV Stability and Weather Resistance
High brightness and purity contribute to better UV resistance, reducing the risk of yellowing or degradation over time.
Improves long-term performance in outdoor conditions, ensuring the windows remain durable despite exposure to sunlight, rain, and temperature variations.
5. Improved Processing Efficiency
Ensures excellent dispersibility in the PVC matrix, leading to uniform mixing and consistent product quality.
Enhances the flow properties of the PVC compound, improving extrusion performance and reducing production defects.
6. Thermal Stability
Helps reduce the heat buildup during extrusion, ensuring smoother processing and preventing degradation of the PVC material.
Contributes to dimensional accuracy during high-temperature extrusion processes, which is critical for tight tolerances in window profiles.