(lithopone for plastic)
Lithopone (ZnS·BaSO4) and titanium dioxide (TiO2) remain indispensable additives for modern polymer engineering. While titanium dioxide R-5568 dominates masterbatch formulations with 92% UV reflectivity, lithopone demonstrates 18% higher cost-efficiency in opaque plastic applications according to 2023 polymer additive reports. The global market for plastic-grade lithopone reached $427 million in 2022, growing at 4.8% CAGR as manufacturers seek TiO2 alternatives.
Parameter | Lithopone 30% | TiO2 R-5568 | SK-6658 |
---|---|---|---|
Weather Resistance (hours) | 1,200 | 2,500 | 1,800 |
Cost/Tonne (USD) | 1,450 | 3,200 | 2,800 |
Opacity Index | 94 | 98 | 96 |
Advanced lithopone grades now achieve 87% TiO2 equivalence in L whiteness measurements while reducing extrusion torque by 15-22% compared to conventional masterbatch formulations.
Top lithopone suppliers demonstrate distinct specialization:
Modern compounding approaches combine lithopone with 2-8% TiO2 SK-6658 to balance mechanical properties:
Adoption data reveals 23% material cost reduction in polypropylene containers through lithopone-TiO2 hybrid systems. Automotive applications show 14% weight reduction in ABS components without compromising impact strength (ASTM D256).
A Tier 1 automotive supplier achieved 18% faster cycle times in injection-molded PP dashboards using lithopone-enhanced masterbatch, maintaining 95% surface gloss consistency across 500,000+ production cycles.
Leading manufacturers now provide batch-traceable lithopone with ISO 9001:2015 certification, offering technical specifications including:
(lithopone for plastic)
A: Lithopone for plastic is a white pigment blend of zinc sulfide and barium sulfate, used to enhance opacity and brightness in plastic products. It serves as a cost-effective alternative to titanium dioxide in applications like packaging, toys, and PVC. Its properties ensure good dispersion and stability in plastic matrices.
A: Titanium dioxide R-5568 offers superior opacity, UV resistance, and whiteness compared to lithopone in plastic masterbatches. It is ideal for high-performance applications like outdoor plastics or automotive parts. Lithopone, however, is preferred for cost-sensitive projects requiring moderate opacity.
A: SK-6658 titanium dioxide is specially formulated for plastics and color masterbatches, ensuring excellent heat stability and color consistency. It provides high tinting strength and resistance to weathering. This makes it suitable for demanding applications like engineering plastics and films.
A: Look for manufacturers with certifications (e.g., ISO), proven expertise in plastic-grade lithopone, and customized solutions. Evaluate their production capacity, quality control processes, and compliance with environmental standards. Established suppliers often provide technical support and consistent product quality.
A: Prioritize suppliers with a strong track record in delivering plastic-grade lithopone on time and at competitive pricing. Ensure they offer product testing, documentation, and responsive customer service. Regional availability and sustainable practices may also influence your decision.