| appearance | white powder |
color | L* > 97.0 |
| solidContent | > 98.0 wt% |
particleSizeD50 | 0.5 µm |
| pH | 7 |
hardnessMohs | 3 |
S-10 Zinc Sulfide is a high-purity, organically surface-modified white pigment engineered for demanding industrial applications. It delivers exceptional dispersion stability in polymer matrices and coating systems without compromising mechanical integrity—making it ideal for engineering plastics, rubber compounds, UV-curable white coatings, and paper whitening. With outstanding chemical resistance across pH 4–12, low Mohs hardness (3), and minimal UV absorption in the 360–400 nm range, it serves dual functional roles: as a non-reactive white pigment and as a protective lubricant in abrasive processing environments. Its narrow particle size distribution (D50 ≈ 0.5 µm) and high whiteness (L* > 97.0) ensure superior opacity, brightness, and batch-to-batch consistency—particularly valuable in glass fiber-reinforced plastics (GRP), where it acts as an interfacial barrier against corrosion and wear.
1. Ultra-fine median particle size (~0.5 µm) ensures smooth dispersion and high hiding power (>52 vs. TiO₂ reference).
2. High purity (>98.0 wt% ZnS) with negligible trace metals preserves polymer stability and color fidelity.
3. Neutral pH (~7) and broad pH compatibility (4–12) enable use in acidic or alkaline formulations.
4. Low Mohs hardness (3) reduces mold/tool wear in injection molding and extrusion of rigid plastics.
Store in a dry, cool, and well-ventilated area away from direct sunlight and moisture. Keep packaging sealed and avoid stacking to prevent compaction. Shelf life is 12 months from date of manufacture when stored under recommended conditions. For optimal dispersion, pre-mix with carrier resins or use high-shear mixing equipment; avoid prolonged exposure to strong oxidizers or mineral acids. As with all fine powders, handle using appropriate PPE (dust mask, gloves, safety goggles) to minimize inhalation or skin contact.; Storage condition: 25 kg bag; Shelf life: 25 kg bag; Pack size: 25 kg bag
