Introduction
The equipment of the marine industry faces a lot of conditions that other industries fail to match. Some of these conditions are saltwater spray, constant humidity, temperature swings like arctic cold to tropical heat and continuous exposure to moisture that results in acceleration in wear, corrosion and lubricant breakdown. Thus, choosing the right lubricant is extremely important for the marine industry as it directly affects the uptime, safety and long-term operating cost of the equipment.
Why are Marine Conditions So Demanding?
Standard mineral-based lubricants are never designed according to saltwater exposure. Salt also tends to accelerate corrosion and moisture that can wash out or dilute the conventional greases over time and leave the surfaces under-protected. Marine equipment also bears a wide range of temperatures from icy deck tools in the north western to sunbaked crane components in tropical parts. This is why it is important to use the correct lubricant in marine equipment.
Why Silicone Lubricants Perform Well in This Settings?
Below stated are some of the properties of silicone lubricants which make them ideal for the marine industry:
- Water Resistance: Silicone doesn’t wash out the water or emulsify with it. Instead, it remains steady in place and protects the surface continuously even under constant salt spray or submission.
- Wide Temperature Stability: Silicone maintains its lubricating properties across a wide range of temperatures as compared to other conventional lubricants and performs consistently despite the operating conditions of the equipment.
- Corrosion and Moisture Protection: Silicone lubricants form a water-repellent barrier on metal surfaces which helps in slowing the corrosion process.
- Chemical Inertness: Silicone is largely unreactive with other materials which reduces the risk of unwanted interactions with seals, plastics or coating in marine equipment.
- Non-Conductive Properties: Many silicone greases are electrically non-conductive which makes them a safer option for electrical connectors, terminals and other components to the marine environment.
- Long Service Intervals: Silicone tends to resist breakdowns from oxidation and moisture better than any other alternatives and also often extends the time between reapplications which is an advantage for offshore assets.
Common Marine and Offshore Applications
Below stated are some of the common marine and offshore applications that uses silicone for lubrication:
- Deck Hardware and Hatches: Silicone is used in the hinges, latches and seals to offer water resistance and prevent them from sticking or seizing.
- Winches, Cranes and Wire Rope Systems: Silicone is used in these components as they are constantly exposed to load and weather and require a lubricant that won’t wash away or thin out in wet conditions.
- Electrical Connectors and Terminators: Non-conductive silicone greases help in protecting against moisture ingress and corrosion at electrical connection points.
- Rubber Seals, Gaskets and O-Rings: Silicone lubricants are compatible with rubber compounds and help them in maintaining seal flexibility and prevent premature cracking in harsh conditions.
- Valves and Fitting: Silicone-based lubricants help the valves to operate smoothly even after long periods of inactivity which is a common situation on offshore platforms.
- Bearings and Moving Mechanical Parts: Silicone helps in maintaining the lubrication performance over a longer period of time in situations where water exposure can quickly degrade the conventional grease.
Factors to be Considered While Choosing the Right Silicone Product
Below stated are some of the factors to be considered while choosing the correct silicone for one’s application:
- Consistency and Thickness: Heavier silicone greases are suitable for slower-moving or heavily loaded components like winches and deck hardware whereas lighter silicone oils or sprays are better suited for smaller mechanisms, electrical contacts or fine-tolerance parts.
- Temperature Range: It is important to confirm that the product’s rated operating range matches the actual condition of the equipment, especially assets for operating in extremely cold or heat.
- Compatibility with Existing Materials: It is also important to check the compatibility with specific rubber, plastic or coating materials that are being used in the equipment as not every formulation is not designed for every application.
- Application Method: Some marine environments favor aerosol or spray-applied silicone lubricants for their easy application in awkward or exposed locations whereas some opt for grease applied by hands or through a grease gun.
How to Maintain the Silicone Lubrications
High-performance silicone lubricants also require benefits from a sensible maintenance routine. Those lubricants should be inspected regularly to catch early signs of water ingress, salt buildup or mechanical wear before they become a larger problem. Reapplication schedules should be made according to the specific exposure levels of each component for example, a winch exposed to constant spray will need attention more frequently than a sheltered hinge. It is also important to keep proper storage practices in mind for silicone lubricants. Even though they remain stable, silicone greases and emulsions can be affected by extreme storage temperatures or prolonged exposure to contamination. Thus, the following manufacturer’s storage guidance can help in ensuring the product performs as per the expectation at the time of use.
Silicone Lubricants as a Practical Environment for Demanding Environments
Equipment downtime is very expensive for marine and offshore operators and corrosion-related failures can pose a safety risk. Thus, silicone lubricants offer a practical way to maintain intervals, protect equipment and reduce the frequency of costly repairs. Thus, choosing the correct silicone product for each application becomes a real advantage rather than treating all marine lubrication needs as the same.
Take Away
This is a brief explanation about the role of silicone lubricants in marine and offshore equipment, how to choose these lubricants correctly and how to maintain them. We hope this information will be effective for you. Please let us know through your valuable feedback and the suggestion in the drop box.