Synthetic and Natural Barium Sulphate (BaSO₄) are chemically inert inorganic pigment extenders used in pigment powders and pigment paste systems to control particle packing, optical behaviour, dispersion stability, and processing consistency. BaSO₄ is inert...
Why Barytes & PPT BaSO₄ is the preferred choice for pigments formulations
Comprehensive range of Barytes & PPT BaSO₄ grades for diverse industrial applications
Common questions about Barytes & PPT BaSO₄ in pigments applications
Natural BaSO₄ (barite) has a broader particle size distribution and is cost-efficient for general pigment powder extension. Synthetic (precipitated) BaSO₄ has high purity, controlled narrow PSD (0.5–2 µm), superior brightness and consistency — preferred for premium pigment pastes and high-performance concentrates.
BaSO₄ acts through three mechanisms: (1) Particle spacing — its isodiametric shape occupies interstitial spaces between pigment particles, reducing contact and suppressing agglomeration; (2) Optical neutrality — its moderate RI (~1.64) preserves chroma and enables translucent behaviour; (3) Chemical stability — its insoluble, inert crystal structure ensures long-term stability in powders and pastes.
No, BaSO₄'s optical neutrality ensures it does not overpower colour pigments. It preserves chroma, supports clean shade development, and enables translucent to semi-opaque behaviour — making it ideal for organic pigment systems where colour purity is critical.
Yes, BaSO₄'s high density, low oil absorption, and stable rheology allow high filler loading while maintaining processability, stable viscosity, and consistent dispersion — making it well-suited for high-solid pigment concentrates.
Stable pigment dispersion, predictable optical behaviour, improved paste processability, reduced formulation variability, consistent batch-to-batch performance, and prevention of hard settling during storage.
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