Purpose and Specifications

Motul Nautic Grease NLGI 2 is a high-performance marine grease engineered for boats, ships, and coastal equipment exposed to saltwater and harsh conditions. This synthetic grease protects metal parts from rust and wear while staying put even when water splashes or sprays directly on lubricated surfaces.

Key Technical Details:

• Type: Synthetic calcium-based grease with extreme pressure additives
• Operating Temperature Range: -30°C to +120°C (works in freezing winters and hot tropical summers)
• Water Resistance: Completely insoluble in water—won't wash away in rain or seawater
• Color: Blue (easy to identify and track application)
• Consistency: NLGI Grade 2 (medium thickness, suitable for most marine bearings and joints)

The grease contains PTFE (a dry lubricant additive) that reduces friction and works safely with rubber seals and plastic components common in modern marine equipment.

When to Use / Replace?

Best Applications:

• Open gears and chain drives on boats
• Ball and roller bearings in winches, pulleys, and motors
• Anchor cables, hoist lines, and rigging hardware
• Pivot pins, hinges, and moving joints exposed to saltwater spray
• Any mechanical part in contact with seawater or humid coastal air

Replacement Schedule: Reapply every 6–12 months depending on exposure intensity. In heavy saltwater environments (constant spray), inspect and top up every 6 months. In moderate coastal use, annual application is typically sufficient. The grease lasts longer than standard products due to superior durability, reducing overall consumption and maintenance frequency.

Storage: Store in a cool, dry place. Shelf life is typically 3–5 years in sealed containers away from direct sunlight.

Frequently Asked Questions

Q: Will this grease wash away if my boat is in saltwater?
A: No. Motul Nautic Grease is completely insoluble in water and saltwater. It sticks firmly to surfaces and resists washout, making it ideal for submerged or spray-exposed parts.

Q: Can I use this on freshwater equipment or just marine?
A: Yes, it works on both. While designed for saltwater, it performs excellently on freshwater boats, coastal vehicles, and any equipment in humid or wet environments. It's overkill for dry inland use but won't cause problems.

Q: Is this grease safe for rubber seals and plastic fittings?
A: Yes. The PTFE additive ensures compatibility with elastomers (rubber) and plastics, so it won't degrade common marine seals or connectors.