Lithopone (Zinc Sulfide / Barium Sulfate Blend)
Lithopone is a co-precipitated white pigment consisting of approximately 30% zinc sulfide (ZnS) and 70% barium sulfate (BaSO4), widely used as an economical white pigment and filler in interior paints, rubber, plastics, and paper coatings. While less opaque than TiO2, its combination of whiteness, low oil absorption, and inertness makes it a cost-effective partial TiO2 replacement and functional filler. Chemzip supplies standard and high-strength lithopone grades.
المواصفات الفنية
| appearance | White fine powder |
| whiteness (%) | ≥95.0 |
| ZnS content (%) | 28.0–32.0 |
| oil absorption (g/100g) | 10–18 |
مجالات التطبيق
- Interior architectural paint as TiO2 extender
- Rubber compounding for whitening and stiffness
- PVC and plastic film white pigment filler
- Paper coating and board whitening agent
- Leather finishing and imitation leather coating
مميزات المنتج
- Low oil absorption reduces binder demand allowing cost-effective formulation
- Chemically inert BaSO4 co-pigment provides acid and alkali resistance
- Non-toxic and heavy-metal-free for indoor and toy applications
- Stable supply from large-capacity production with competitive bulk pricing
