Submarine periscopes require special lubricants that work in extremely salty conditions while maintaining crystal-clear optical windows. The lubricants must withstand pressure changes from surface to deep water without creating bubbles or fog. Modern submarines use synthetic oils that remain stable from -40°C Arctic waters to tropical seas. If the wrong grease is used, the periscope can seize up or leak, compromising the submarine's stealth and safety.
Explore our lubricant product range
Explore our lubricant product range