Sea – Marine Applications

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Silicone Rubber for Military & Defence

In naval defence environments, materials must withstand constant exposure to moisture, pressure, vibration, and extreme operating conditions. Silicone Engineering manufactures high-performance solid and sponge silicone solutions engineered to protect mission-critical systems across submarines, frigates, autonomous underwater vehicles, and naval support equipment.

From watertight enclosure gaskets and hatch seals to vibration dampening and thermal insulation systems, our kSil™, expanSil™, and suraSil™ materials deliver excellent environmental sealing, flame resistance, and long-term durability in harsh marine environments.

We formulate and test materials to globally recognised standards including ASTM D1056, UL94 V-0, and FAR25, supporting reliable sealing and protection in demanding naval and underwater defence applications.

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How can silicone be used?

Silicone sponge and solids are used across a wide range of naval defence applications to seal, insulate, and protect systems from flame, heat, water ingress, salt exposure, vibration, and harsh marine environments.

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Seals & gaskets

Silicone sponge provides reliable sealing for naval hatches, enclosures, and electronic systems, helping protect against water ingress, salt exposure, and harsh marine environments.

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Acoustic & vibration insulation

Silicone materials help reduce onboard noise and mechanical stress, supporting crew comfort and protecting sensitive naval electronics and control systems.

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Thermal insulation

Closed-cell sponge and solid silicone grades provide excellent thermal insulation in extreme temperatures, ideal for engine rooms, battery systems, and high-heat naval equipment.

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Sealing profiles

Custom sponge and solid silicone extrusions, including tubing, cords, and profiles, are used to seal lighting units, sensor housings, and electrical enclosures across naval defence platforms.

Extreme Environments, Trusted Performance

From scorching deserts to freezing arctic conditions, military equipment must endure environments that push materials to their limits. That’s why Silicone Engineering’s materials are designed and tested to deliver consistent, high-performance sealing and insulation, even under extreme mechanical and environmental stress.

Our silicone sponge and solid rubber grades operate in temperatures ranging from -60°C to +230°C, maintaining flexibility, compression recovery, and sealing integrity in both static and dynamic applications. With UL94 V-0 flame retardant ratings available across our V-0 and 2D series grades, our materials also help reduce fire risk in enclosed or high-heat environments.

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PRODUCT FEATURES

Why choose silicone rubber for the Military and Defence industry?

Our silicone materials are engineered for high performance across demanding industries and are well-suited for use in defence applications. Available in a wide range of specifications, including custom formats, they offer durability, protection, and environmental resistance where it matters most.

Temperature range

With an impressive temperature range of 230°C to -60°C, silicone can meet the demands of varying environmental conditions and temperatures.

Environmental protection

Silicone rubber protects joints and materials from extreme weather conditions, UV, Ozone, moisture, heat, corrosion, , pollution and chemicals.

Lifespan

Silicone has a longer lifespan than other rubbers when used in an outdoor environment thanks to its excellent UV and ozone resistance.

MILITARY AND DEFENCE SEA APPLICATIONS

Military & Defence Applications for Silicone Products

Silicone Engineering for Military and Defense Applications Silicone rubber is a versatile and robust material used in numerous interior and exterior applications across the military and defense sectors. Its unique properties make it an ideal solution for a wide range of critical components. Key Applications Silicone rubber is extensively used to seal, insulate, and protect various parts in military equipment. Sealing: It provides a reliable seal for door and window seals, vent ducts, and instrument panels, ensuring environmental protection and system integrity. Insulation: Silicone offers excellent thermal insulation for a variety of components, protecting sensitive electronics and equipment from extreme temperatures. Gaskets: Engine gaskets and other seals benefit from silicone's ability to withstand high temperatures and harsh conditions, ensuring long-term reliability. Silicone's durability and resistance to extreme environments make it a trusted material for enhancing the performance and safety of military and defense systems.

  • Hatch Seals
  • Bulkhead Seals
  • Light Seals
Gap Filling Thermal Insulation HVAC Seals & Gaskets Seat Cushioning Flooring System HVAC Seals & Gaskets Window Seals Thermal Insulation HVAC Seals & Gaskets Hatch Seals Light Seals Bulkhead Seals

Military Grades for Air Applications

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Technical data is available on all Silicone Engineering products. For more details, download the product information or speak to one of Silicone Engineering’s dedicated specialists.

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