What Is It?
Off-White Barytes Powder is the mineral form of barium sulphate in an off-white to slightly coloured form. It is produced by processing barytes ore with a higher degree of cleaning and classification than grey grades, resulting in a lighter appearance while retaining the high specific gravity and chemical properties characteristic of high-quality barytes.
SBMPM’s Off-White Barytes Powder range — the H-Series — comprises seven grades from SBMPM-H10 to SBMPM-H70, with specific gravity values ranging from 3.50 to 4.30 g/cc and BaSO4 purity from 70% to 95%. The product features a controlled silica content (3% to 15% depending on grade), pH maintained at 7.0–12, and very low moisture (0.5%–1%). Particle size is standardised at 400 and 500 mesh with a maximum of 0.5% retained on either screen.
This product line is a versatile choice for industrial applications where a lighter colour than grey is preferred, but the high brightness of white barytes is not required. It represents an excellent balance of performance and value.
Who Is It For?
Off-white barytes is suitable for a wide range of industrial buyers including:
- Industrial paint and coating manufacturers who need an extender with controlled colour and high density
- Marine coating formulators where density and chemical resistance are priorities
- Rubber compound manufacturers who require consistent filler properties
- Friction and brake material manufacturers
- Adhesive, sealant, and putty manufacturers in the construction and automotive sectors
- Plastic and thermoplastic compound producers
Key Benefits
Seven Distinct Grades: The H-Series covers a wide range of specific gravity (3.50 to 4.30 g/cc) and BaSO4 content (70% to 95%), giving buyers the flexibility to select the exact performance profile their application requires.
Controlled Silica Levels: Silica content is tracked and disclosed for each grade (ranging from 3% to 15%), allowing formulators to account for abrasiveness and chemical interactions in their process.
Consistent pH Range: All H-Series grades maintain a pH of 7.0 to 12, ensuring compatibility with most polymer, rubber, and paint formulation systems.
Low Moisture Content: Maximum moisture content of 0.5%–1% ensures the product remains free-flowing and does not clump during storage or transport.
Fine Particle Size: Standard 400 and 500 mesh particle sizes with tight distribution control ensure smooth, homogeneous dispersion in end-use formulations.
Chemical Stability: Off-white barytes is chemically inert to water, dilute acids, and alkalis, making it safe and reliable in a wide range of chemical environments.
Good Filler Performance: Low oil absorption, high density, and fine particle size combine to deliver excellent filler performance in terms of improved stiffness, abrasion resistance, and dimensional stability in end products.
Packaging Flexibility: Available in 25 kg HDPE bags, 50 kg HDPE bags, 1,000 kg jumbo bags, and 1,500 kg jumbo bags to suit orders of all sizes.
Technical Specifications (Grade Summary)
| Grade | Specific Gravity (g/cc) | BaSO4 (%) | Silica (%) | pH | 500 Mesh Retained (%) | Moisture (%) |
|---|---|---|---|---|---|---|
| SBMPM-H10 | 4.25–4.30 | 95 | 3–2 | 7–12 | 0.5 | 0.5–1 |
| SBMPM-H20 | 4.20–4.23 | 91 | 4–3.5 | 7–12 | 0.5 | 0.5–1 |
| SBMPM-H30 | 4.10–4.19 | 87 | 4.2–5 | 7–12 | 0.5 | 0.5–1 |
| SBMPM-H40 | 4.00–4.09 | 85 | 5.2–6 | 7–12 | 0.5 | 0.5–1 |
| SBMPM-H50 | 3.90–3.99 | 80 | 6.2–7 | 7–12 | 0.5 | 0.5–1 |
| SBMPM-H60 | 3.80–3.89 | 75 | 7.2–8 | 7–12 | 0.5 | 0.5–1 |
| SBMPM-H70 | 3.70–3.50 | 70–50 | 10–15 | 7–12 | 0.5 | 0.5–1 |
Applications
Oil-well drilling | Ceramics | Friction materials | Rubber compounding | Exterior paints | Industrial coatings | Marine paints | Construction grouts | Adhesives | Sealants | Automotive putties | Thermoplastics | Thermosets | Gaskets