Water Block / Waterproof / Water Resistant Cable

Galaxy is a leading supplier of custom water block cables, waterproof cables and water resistant cables

Water Block Cable, Waterproof Cable, Water Resistant Cable

Water Resistant CablesGalaxy is a leading supplier of custom water block cables, waterproof cables and water resistant cables. Galaxy can supply various types of custom water block, waterproof and water resistant cables in various AWG sizes, voltage ratings, compounds, shielding constructions, and conductor counts. Galaxy can also recommend the correct water block, waterproof or water resistant cable for specific applications.

What is Water Block Cable?

Water block or water resistant cable is a multi-conductor cable that is designed to be used in a wet or aquatic environment. The cable can be designed to perform in different types of aquatic environments such as saltwater, freshwater, and chlorinated pools. Water block, waterproof or water resistant cables can be designed to function completely submerged and at differing depths. Water block, waterproof or resistant cable is built using specific jacket material that can function in a wet environment. Aside from the jacket material of a water block, waterproof or resistant cable, the use of water blocking tape and/or water blocking fillers must be considered during the design phase.

Benefits of Water Block / Waterproof / Water Resistant Cable

If an application is to be used in a wet environment or exposed to the elements, choosing a water block, waterproof or resistant cable can help ensure your product will function as it was intended, and possibly prevent damage to control electronics. A custom water blocked or water resistant cable will withstand any moisture or water ingress for the lifespan of the cable. Safety considerations are also part of the cable design process – if the cable will transmit power or be part of electrical equipment, a water resistant cable can often be the correct choice.

Water Block / Waterproof / Water Resistant Cable Applications

There are many and varied instrumentation and tray cable applications, these include but are not limited to:

  • Military
  • Pressure Sensor Equipment
  • Oil and Gas Refineries
  • Fire Alarm

Galaxy Differentiators / Advantages for Water Block Cable

Galaxy can supply water block or resistant cables with low minimum quantities and competitive lead times. During the selection process it is critical to understand the application, as well as the environment that the cable will be expected to function in during use. Galaxy’s Sales Engineers can help navigate the possibilities and provide the correct water block or resistant cable to match the application and environment. If a stock water block or resistant cable is not available, Galaxy can assist in the design of the perfect cable.


Water block cable from Galaxy is available with the following materials:

  • Water blocking tape
  • Water blocking gel
  • Water blocking fillers

Water Block Cable Technical Specifications

Galaxy offers water block cable in the following ranges of technical specifications:

  • Gauge: 4/0 – 36AWG
  • Voltage: 30V – 600V

FAQs about Water Block Cable

Is waterblock cable 100% waterproof?

Waterblock components in a cable serve to slow and sometimes cease the flow of water through a cable. However, if the source of water remains consistent, the water absorbing properties will absorb up to a certain point.

How do waterblock components function?

Waterblock tape, fillers, and compound all work relatively the same in that they absorb ambient water and expand, much like a paper towel. They will expand and fill the interstices of the cable to try to prevent the migration of water through a cable core.

Terminology Notes

There are various terms used in the wire and cable industry related to this type of cable. They include:

  • Waterblock cable
  • Waterproof cable / water proof cable
  • Water resistant cable
  • Watertight cable / water tight cable
  • Submersible cable

Contact Galaxy Wire & Cable for Water Block Cable and Water Resistant Cable

Contact Galaxy for further assistance with water block cables and water resistant cables.