Base Oil SN 500

available

Base Oil SN 500 (Heavy Viscosity Group I)

“The high-viscosity workhorse: the heavy base for marine cylinder oils, open gears, and high-temperature greases.” Arnico’s Base Oil SN 500 is the high-viscosity, heavy-duty paraffinic Group I base stock, the powerhouse behind the world’s most demanding lubrication applications. As the essential base for marine cylinder oils that power global shipping fleets, for industrial open-gear lubricants, and for high-temperature greases, it provides an extremely tough, durable lubricating film. For formulators who need maximum load-carrying capacity and film strength, our SN 500 is the uncompromising, heavy-duty foundation.

Description More

1. Product Introduction & Main Application

Arnico’s Base Oil SN 500 is a high-viscosity, heavy Group I mineral base oil, produced by the vacuum distillation and solvent refining of heavy paraffinic crude oil cuts. This high-viscosity oil is the primary base material for the production of heavy-duty industrial lubricants, super-heavy-duty marine diesel engine oils, compressor cylinder oils, and high-temperature greases.

2. Technical Specifications

Technical Parameter	Standard SN 500 Grade	Marine Grade	Unit
Viscosity at 40°C	90 – 105	100 – 120	cSt
Viscosity at 100°C	10.5 – 12.0	11.0 – 13.0	cSt
Viscosity Index (VI)	≥ 95	≥ 95	–
Flash Point (COC)	≥ 240	≥ 250	°C
Pour Point	≤ -6	≤ -3	°C
Sulfur	≤ 0.5	≤ 0.6	%
Color (ASTM)	≤ 3.0	≤ 4.0	–

3. Features & Benefits

High Viscosity & Film Strength: Creates a very strong and durable protective layer between metal surfaces under extreme pressure and temperature.
Resistance to Shock & Impact Loads: Ideal for heavy-duty gears and slow-moving, high-load bearings.
An Exceptionally High Flash Point: Ensures safety and stability at very high operating temperatures.
Good Shear Stability: Resists a reduction in viscosity under severe mechanical stress.

4. Industrial Applications

Marine Engine Oils: The base for cylinder and system oils for large ocean-going ship engines.
Gear & Gearbox Oils: A lubricant for heavy-duty industrial gears and construction machinery.
Compressors: The cylinder oil for large reciprocating piston compressors.
Grease Manufacturing: The base fluid for high-temperature and water-resistant greases.

5. Safety & Handling

MSDS (Material Safety Data Sheet): Prolonged skin contact can cause irritation and clog pores. The Arnico MSDS file must be obtained.
Storage Conditions: Store in clean, dry tanks, away from moisture, at ambient temperature. Gentle heating may be required for easier pumping.
Personal Protective Equipment (PPE): Oil-resistant gloves and safety goggles are recommended.

6. Quality Assurance & COA

Arnico SN 500 shipments are accompanied by a complete Certificate of Analysis (COA) detailing the viscosity, flash point, and pour point.

Technical documents for the product Base Oil SN 500 including the Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS), and Certificate of Analysis (COA), are available to customers upon request.

To receive these documents and further information, please contact our technical or sales department, or reach out to us via email.