How Does Waterproofing Work?

Cables in the rain

Waterproofing is the process of giving an object, such as a cable, waterproof or water resistant properties. How does waterproofing work for cables? It’s simple — the cable is reinforced with a thick and sturdy material that prevents water penetration, even under pressure. Commonly used water-resistant materials for cable jackets include thermoplastic chlorinated polyethylene (CPE), neoprene, EPR, and thermoset CPE. Learn more about waterproof cables below and their many uses across a range of industries.

What Makes Waterproof Cables and Connectors Unique?

Waterproof cables differ from non-waterproof cables because they offer the following characteristics:

  • They can be exposed to water or used underwater.
  • They’re constructed from heavy-duty materials.
  • They can endure high voltage and high amperage.

What are the Uses for Waterproof Cables?

Because they’re resistant to moisture, waterproof cables can be used virtually anywhere, whether it’s in marine electronics or outdoors. Here’s a quick look at common applications for waterproof cables and different types of connectors:

Outdoor Lighting & Signage 

  • Outdoor TVs
  • Event lighting
  • Lighting for buildings
  • Lighting for transportation systems

Industrial Automation

  • Industrial PCs
  • Forklifts and other types of heavy machinery


  • Security cameras
  • Security systems and alarms

Marine Electronics 

  • Underwater cameras and imaging systems
  • Marine communications
  • GPS

What are Waterproof Cable Glands?

Waterproof cable glands are used in electrical and electronic enclosures to connect wires and cables with a watertight seal. Cable glands are comprised of a nut, gasket, and body; the nut and gasket are placed inside the waterproof enclosure and the body goes on the outside. The cable is threaded through and the nut and body are screwed together, creating a seal that’s watertight. Cable glands are available in a wide range of sizes to help protect your connections even further from water.

Purchase Waterproof Cables and Connectors From Gateway Cable Company!

Now that you know the answer to the question, “How does waterproofing work,” you’re ready to begin your search for the right waterproof cable, connector, or other electrical componenst. Gateway Cable Company can help! Our military-grade cables are waterproof, as well as corrosion and ozone resistant. Contact us to learn more about our products, or request a quote online if you already have something specific in mind.