What pigments are compatible with PVC to achieve vibrant, long-lasting colors?

Achieving vibrant and long-lasting colors in PVC requires compatible pigments that can withstand processing conditions and environmental factors. The most suitable pigments for PVC include:

1. Phthalocyanine Pigments: Known for their brilliant blues and greens, these pigments offer excellent heat stability and lightfastness, making them ideal for PVC applications.

2. Azo Pigments: These provide bright reds, oranges, and yellows, with good dispersion and cost-effectiveness for PVC coloring.

3. Titanium Dioxide (TiO2): A staple for white PVC, it enhances opacity and UV resistance, ensuring durability.

4. Carbon Black: Used for deep blacks, it also improves UV protection and mechanical strength in PVC products.

5. Inorganic Pigments (e.g., Cadmium, Iron Oxides): These offer stable, fade-resistant colors but may have limited shades compared to organic options.

For optimal results, ensure pigments are finely dispersed and tested for compatibility with PVC stabilizers and plasticizers. High-quality pigments will deliver vibrant, long-lasting colors while maintaining PVC's performance properties.