WSD CHEMICAL’s full range of PVC-specific pigments are high-performance colorant series meticulously formulated for polyvinyl chloride coloring, fully adapted to the unique processing and application characteristics of PVC materials. Unlike general-purpose pigments, our products are strictly screened to avoid reactive metal ions that may accelerate PVC thermal degradation, prevent unwanted interactions with hydrogen chloride released during processing, and ensure no negative impact on the resin’s thermal stability, electrical insulation and long-term weather resistance.

Our core product portfolio covers both inorganic and organic pigment categories with complete color systems: inorganic pigments include iron oxide red/yellow/black/brown, titanium dioxide, ultramarine blue and carbon black, featuring excellent heat resistance, outstanding covering power, low migration risk and competitive cost, making them ideal for construction profiles, pipes, flooring and low-voltage cable materials. High-performance organic pigments cover phthalocyanine blue/green, permanent yellow, permanent red, quinacridone and high-transparency color grades, delivering bright vivid hues, high color strength and excellent dispersion performance, perfectly suited for transparent PVC sheets, packaging films, toys and high-end decorative products. Every grade is strictly tested for compatibility with PVC stabilizers and processing aids to avoid discoloration or performance loss during processing.

These pigments are widely applied in UPVC pipes, door and window profiles, vinyl flooring, artificial leather, calendered films, injection-molded fittings, foamed boards and cable insulation layers. They maintain stable color performance under 160-200°C processing conditions, show excellent resistance to migration and extraction in soft PVC formulations, and retain consistent color fastness even after years of outdoor exposure. All products are supplied as fine, easy-to-disperse powders, packed in 25kg moisture-proof bags, stored in cool, dry conditions with a 36-month