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EXOL Optima Marine Stern Tube Oil 680 (L299) 25 Litres

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Product Features

EXOL Optima Marine Stern Tube Oil 680 (L299) - 25 Litres

OPTIMA MARINE STERN TUBE OIL 680 is a high-performance lubricant specifically formulated for the demanding operating conditions of marine stern tube applications, specifically designed to lubricate stern tube bearings on vessels and provide a seal against water entry. This advanced oil is engineered to provide exceptional protection and performance in both modern and older marine vessels, ensuring reliable operation and longevity of stern tube systems.

Good Emulsification Properties: Effectively manages water contamination, ensuring the lubricant maintains its protective qualities even in the presence of water.
Excellent Anti-Wear Properties: Minimizes friction and wear on stern tube bearings and seals, extending the lifespan of critical components.
Outstanding Oxidation Resistance: Prevents the formation of sludge and varnish, maintaining long-term cleanliness and operational efficiency.
High Film Strength: Provides a robust lubricating film, ensuring superior protection and reliability under high load and temperature conditions.

Typical Test Data:
Specific Gravity @ 15°C 0.928
Kinematic Viscosity @ 40°C (cSt) 680
Kinematic Viscosity @ 100°C (cSt) 37.3
Viscosity Index 90
Flash Point, COC (°C) 270
Pour Point (°C) -5
Copper Corrosion Class 1a