Bright Stock 150
Description:
Bright Stock 150 is a very high-viscosity Group I base oil derived from residual fractions of vacuum distillation and refined through solvent extraction, dewaxing, and hydrofinishing. It is characterized by its exceptional viscosity, excellent load-carrying capability, and strong film-forming properties. Bright Stock 150 is primarily used in formulating heavy-duty lubricants, marine cylinder oils, industrial greases, and gear oils that operate under severe conditions.
Production Process:
- Vacuum Distillation: Extracts heavier hydrocarbon fractions
- Solvent Refining & Dewaxing: Removes impurities and improves pour point
- Hydrofinishing: Enhances oxidative stability, color, and cleanliness
Key Technical Properties (Typical Values):
- Viscosity @ 100°C: ~28–34 cSt
- Viscosity Index (VI): 95–105
- Flash Point (COC): >260°C
- Pour Point: -3°C to -6°C
- Color (ASTM D1500): L3.5–L5.0
- Sulfur Content: >0.03%
- Density @ 15°C: ~0.900–0.920 kg/L
- Aromatic Content: Moderate – enhances solvency and compatibility
Benefits:
- Extremely high viscosity for applications requiring thick lubrication films
- Excellent load-carrying and anti-wear protection in high-pressure systems
- Stable at high temperatures with good oxidation resistance
- Strong solvency for dispersing additive packages and contaminants
- Enhances viscosity index and film strength when blended with lighter base oils
Applications:
- Marine: Cylinder oils and slow-speed diesel engine lubricants
- Automotive: High-viscosity gear and transmission oils
- Industrial: Open gear lubricants, heavy-duty hydraulic oils
- Greases: Base fluid for calcium, lithium, and complex soap greases
- Metalworking: High-load cutting oils and rolling oils
- Blending Component: Used to increase viscosity in multigrade formulations
Packaging Options:
- Available in bulk, flexitanks, 200-liter drums, and IBCs
- Custom packaging and blending services available upon request
Compliance & Standards:
- Conforms to API Group I classification
- Compatible with Group I and Group II base oils for blending
- Supports lubricant formulations designed to meet marine, industrial, and OEM standards
Product data-sheets can be downloaded from the following link(s):
