Marine applications
Index Marine products have all been designed, manufactured, and tested for use in a wide range of marine applications from small leisure craft with owner-installed lighting or navigation kit, superyachts where aesthetics are key, right up to military vessels where robustness and safety is paramount.
Meeting IP68 standard, our sealed glands give assurance of waterproofing at every point where a cable passes through a panel or bulkhead, such as external antennae connecting to in-vessel radios and nav-aids, lighting and audio cabling routing throughout a boat, or water detectors and pumps in hull cavities connecting to alarm and control systems.
Our glands work simply by the action of tightening the top cover which squeezes and soft rubber bung around the cable forming a durable watertight seal. Easy and quick to install – neat and discrete to look at.


Our glands work simply by the action of tightening the top cover which squeezes and soft rubber bung around the cable forming a durable watertight seal. Easy and quick to install – neat and discrete to look at.
We have two types of gland – straight-through (DG Series), where cable enters and exits perpendicular to the panel surface, and side-entry (SE Series) where the cable exits the panel flush with it, enabling neat and unobtrusive cable tracking.
Both series of glands offer a range of sizes with pre-formed or user configurable cable hole sizing, allowing one or more cables to be passed through the gland, and enabling cables with pre-fitted connectors to be passed through and sealed. Whether hobbyist or professional boat builder we make selection and figment of glands for your application simple with our new app. Just measure the cable thicknesses, and connector sizes (if fitted), and the app will tell you which gland family to use, and give you a drilling template too. We even supply a cable thickness gauge to make it as easy as possible.
The glands are available in a range of finishes including tough white or grey plastic, anodised aluminium – natural and custom colour finishes -, and polished stainless steel for top-end aesthetics and durability. We can also supply customer-specific finishes, so if you have something in mind, just call us to discuss.
We also supply waterproof junction boxes so cabling systems can be neatly brought together and routed through bulkheads. Again, sealing the connections against ingress of water is a safety essential, and Index Marine junction boxes are built to keep out the elements. We also offer a range of popular Bulgin brand connectors so that you can be sure of getting all your waterproof electrical connectivity products from Index Marine.
As well as cabling safety and security, Index Marine recognises the importance (and legislated obligation in many countries) of installing quality alarm and control systems in boats to detect ingress of water into bilges and sealed compartments, in order to alert crew to switch on pumps. Moreover, the pump effectiveness also needs to be monitored as does security of hatches and doors in emergency situations. Index Marine offers a range of simple-to-install fluid detectors and alarm/control panels aimed at working boats, but which will also bring peace of mind to leisure boat users too.


Clean energy applications
Whether installed on a boat or motor home, domestic or commercial building, or in a solar farm, the interconnection of solar panels always need cabling that passes through panels, roofs, walls or frames that are exposed to the elements. Water ingress would be disastrous, and Index Marine IP68 sealed glands and electrical connectors ensure that the installation is weatherproof. Our junction boxes enable arrays of solar panels to be interconnected and our waterproof connectors mean that easy replacement of faulty units can be achieved with minimum system down-time.
Normally out of sight on building roofs, our most popular sealed cable glands are our plastic ones, which have passed rigorous UV testing to ensure they retain their structural integrity in all environments. However, our range of finishes offer matching with various solar panel and roof types, and we can also provide custom colours where there is a requirement for unobtrusive cable routing.
Flood defence applications
Index Marine products can be used in long-term urban infrastructure applications where arrays of detectors and alarm systems are interconnected to control centres monitoring and activating flood defences. Whether it’s waiting for the 100 year event or dealing with daily water ingress into flood-prone buildings, Index Marine sealed glands provide assurance against water leakage around cabling systems, and our sensors provide critical information on water level status. Our off-the-shelf alarm/control panels are ideal for homes and small buildings where water in basements or outbuildings needs to be detected and monitored, but we also develop and supply alarm/control panels where large numbers of sensors are monitored, with alarm outputs that can trigger local and remote alarms, pump activity, and data logging.
With today’s changing weather patterns, Index Marine products deliver peace-of-mind for people in flood-prone regions.


Infrastructure applications
These days, our infrastructure incorporates telecoms and datacoms antennae, CCTV cameras and lighting, and numerous other external communications installations. In every instance there are electrical and data cables passing into buildings, installations or vehicles where waterproofing of cable entry points is essential.
Many electrical and electronic items for mounting on the outside of buildings, like datacoms antennae, come with connectors pre-installed on the cables, making it difficult to run cables through walls or panels into buildings, and especially difficult to make the transition waterproof. Index Marine sealed cable glands are designed so that large connectors can be passed through, and then the cable sealed to ensure they meet IP68 water-and dust-proof standards. Our sealed glands can be configured to pass multiple cables with assures waterproof seal, making installation of complex lighting/CCTV/communications positions secure and tidy.
Leisure and utility vehicle applications
Index Marine products are ideal for any vehicle – land or water-based where electrical cabling runs to external peripherals. Solar panels on caravans and RVs, antennae on utility vehicles – Index Marine waterproof cable glands keep the water where it needs to be… outside!
Moreover, our range of finishes ensures that there is a cabling solution that looks great for every application – we can even produce custom colour finishes for special applications. We cater for hobbyists fitting out their vehicles or homes, and major installers, with documentation to help all users, and technical support a phone call or email away.
