India’s ports and naval bases are the lifelines of the nation, handling over 90% of its trade by volume. Dotting a coastline of 11,098.81 km, they are safeguarded by the Indian Navy, Coast Guard, and other agencies responsible for maritime security. The Indian Ocean has witnessed a rise in threats, with naval warfare, unprovoked aggression, pollution of Indian waters, terrorism and smuggling, illegal fishing, and rebel attacks on trade vessels, among others. To effectively counter and neutralise these threats while protecting the nation’s interests, naval security systems need future-ready capabilities – both on the operational and fortification fronts.

Accordingly, the Indian Navy is rapidly modernising, expanding its fleet size as well as operational capabilities. With plans for a larger naval fleet of 200 ships and 500 aircraft by 2050, the focus has shifted decisively towards strategic preparedness. Such high-tech naval systems also require the most advanced protection in every area of operation. Whether from ballistics and blasts or fires, ships, submarines, naval helicopters, carrier vehicles, and shipyards require the latest, most robust safeguards.

Indigenously designed advanced ceramics and new-age materials are fast gaining ground as the most reliable in protecting the country’s maritime systems. Engineered to build as well as protect a future-ready naval fleet, these materials facilitate superior performance while ably fortifying the Navy’s next-gen platforms and systems.

How indigenous materials are rewriting naval defence

New-generation materials such as Carbon Fibre Reinforced Polymers (CFRP), and advanced ceramics such as Reaction Bonded Silicon Carbide, Zirconia Toughened Alumina, and high-purity Alumina have the potential to set new benchmarks in naval protection.

Ceramics provide the dual advantages of lighter weight, with a high strength-to-weight ratio, and anti-corrosion (in harsh marine environments) when compared to steel. The lighter weight advantage will result in greater manoeuvrability and speed. They are also highly resistant to fire, bullets, and blasts, making them ideal for extremely tough and demanding maritime environments.

Advanced and hybrid ceramics are particularly used for specialised applications such as exceptional heat resistance, wear and corrosion resistance, and electrical insulation. They not only help secure ships and crew, but also extend the life of expensive components and equipment, making naval operations more agile and efficient.

Strategic applications of indigenous materials in naval security

Hybrid ceramics and advanced composites are being increasingly deployed for naval defence across three mission-critical areas:

• Blast- and fire-resistant infrastructure for naval bases and shipyards
  Protecting naval bases and shipyards is a critical priority, as these facilities are central to maritime operations, fleet maintenance, and operational readiness. Persistent risks during instances of naval warfare include the rapid spread of localised fire, leading to blasts. Also, projectiles fired during intense maritime combat can severely disrupt operations and endanger the lives of naval personnel. Lightweight blast-proof and fire-proof composites, as well as armour-piercing bulletproof composite materials, are now key to protecting particularly vulnerable areas of ships.
  
  
  
  
  
  Blast-resistant ceramic tiles and modular CFRP panels shield command centres, armouries, and fuel depots. Fireproof composites don’t emit smoke and also help contain the spread of fire. This not only reduces smoke-related risks to the ship’s crew and equipment, but also prevents fire from spreading to vulnerable areas like the boat hull, machinery-housing compartments, Petroleum, Oils, and Lubricants (POL) stores, galleys, and submarine battery pits.
  
  Apart from this, passive fire protection systems, such as the Fire Master Marine Plus Fibre Systems, are being deployed in bulkheads, ship decks, engine rooms, exhaust manifolds, and cabin doors. They provide additional layers of thermal and acoustic insulation for shipboard spaces.
  
  Wind shields and gun mounts on large naval vessels and patrol boats can be fitted with bulletproof protective covers to shield them from gunfire. This protection extends to the ship’s crew also by minimising the chances of this equipment exploding when hit.
  
  These advanced materials make infrastructure far more resilient to attack and sabotage, reduce maintenance demands, and help naval installations last longer.
  
  
  
• Retrofitting and building modern warships with robust ballistic protection
  
  Today’s warships, both new builds and existing vessels, are getting a major upgrade thanks to advanced materials. Warships such as aircraft carriers, destroyers, frigates, as well as patrol boats require robust ballistic protection. This is especially true in the case of patrol boats which India produces in relatively large numbers. Since their smaller size makes them more vulnerable to gunfire, add-on composite ceramic armour panels are particularly useful to fortify them.
  
  With traditional materials often limiting speed and endurance capability in the face of ballistic threats and fire hazards, lightweight composite armour panels and ceramic-based protection systems are being retrofitted onto key areas to improve fire and impact resistance, without compromising on speed or manoeuvrability. Some of these areas are:
• Interiors of engine compartments
• Hangars for aircraft
• Gun mounts
• Interior and exterior of ship hulls
  
  Ceramic composite ballistic protection solutions are significantly lighter than conventional steel solutions which enable the ship to gain higher manoeuvrability, higher speed, and lower maintenance cost over time. These solutions serve as a protective barrier against ballistic threats for mission-critical equipment such as main armaments and other exposed essential systems. CUMI’s ceramic armour solutions adhere to the stringent requirements outlined by international protection standard – STANAG 4569. CUMI’s ceramic composite panels have qualified up to STANAG 4569 Level 3 at tests carried out at IABG (Germany).
  
  For newly constructed vessels, CFRP sheets, tubes, and custom parts make warships lighter, quicker, and easily manoeuvrable. Advanced ceramics are also deployed in missile components, radomes, and radar systems, enabling superior, reliable performance in challenging marine conditions. The use of the nanomaterial graphene can potentially help minimise the radar cross section, to avoid detection by enemy vessels.
  Maritime systems can also benefit significantly from Resin Film Infusion (RFI) fabrication technique. This will help easily fabricate large, complex, asymmetrical composite structures such as fibre-reinforced polymer (FRP) bridges, armoured vehicle hulls, and boat hulls, economically. Their particular value is seen in the design of hull-mounted sonar domes where acoustic transparency is vital. The material is designed to allow sound waves to pass through. Layering or sandwiching diverse core materials within the resin film can enable advanced sonar capabilities, with negligible distortion in frequency or intensity. RFI can also augment resistance to impact while enhancing the strength and durability of naval vessels.
  
  The superstructures of Anti-Submarine Warfare (ASW) corvettes, currently built with foreign Glass-Reinforced Plastic (GRP) or Fibreglass-Reinforced Plastic (FRP), can be replaced with indigenous blast-, bullet-, and fire-proof materials to boost protection and support local industry. Meanwhile, tiles developed using speciality elastomers and advanced materials are being fitted to submarine hulls to reduce acoustic signatures, with research ongoing to improve these even further.
  

• Lightweight armour for land and water operations

Composites and ceramics are also being used in underwater vehicles, as well as fast patrol boats, boosting payload, corrosion resistance, and mission endurance. These upgrades help secure coastal and island bases, and provide operational readiness at all times.

For landing craft, research is underway to upgrade hulls and operator cabins with blast- and bullet-proof materials, providing better protection against mines and gunfire, which is important for amphibious assaults and naval security missions.

On the cards for marine commandos are bulletproof jackets and helmets that are 10–20% lighter and bulletproof shields almost 50% lighter but with multi-hit capability. This will not only result in greater agility but also improved combat effectiveness.

Other applications of advanced materials

The nature of operation of commercial and defence marine vessels requires anti-skid coatings, particularly on ship decks. CUMI supplies premium White Fused Alumina grain to manufacturers of marine-grade anti-skid paints, enhancing deck safety and durability for crew and equipment. Working with materials science experts can ensure customising right down to the grain size as per the specific application and requirement. High purity Alumina based anti-corrosion coatings protect metal components against degradation due to moisture, oxidation, or exposure to harsh marine environments.

White Fused Alumina

Brown Fused Alumina

Silicon Carbide

Naval workshops also require a diverse range of bonded abrasives such as grinding wheels, cutting wheels, flap discs and abrasive grits for blasting operations. As the leading manufacturer of abrasives in India, CUMI manufactures the complete line of abrasive grains in various shapes, grit sizes (as per FEPA standards) and densities, etc. to perfectly fit any blasting operation and working conditions. The range of materials for such applications include White Fused Alumina, Brown Fused Alumina, and Silicon Carbide.

Another revolution in materials science for strategic applications is Phase Change Materials (PCMs). They have emerged as a disruptor across industries including defence – especially for soldiers at the frontlines. Their ability of thermal energy storage eliminates dependency on instantaneous electricity for heating/cooling applications. Pluss Advanced Technologies, a CUMI subsidiary, produces PCMs which could find marine applications in maintaining stable temperatures in living quarters, engine rooms, and prevent sensitive equipment or machinery from overheating or freezing.

Turning the tide with indigenous materials innovation

India’s push for self-reliance in maritime systems, security, and operations is powered by indigenous innovation in advanced, defence-critical materials. For the last 7 decades, CUMI’s fully backward integrated operations and world-class R&D have resulted in rapid strides in materials science for the protection of defence personnel and equipment, including in naval applications.

Our efforts are directed by our goal to build a dynamic, modern, resilient, self-sufficient and unmistakably Indian maritime defence ecosystem for the brave custodians who safeguard our waters.