Military & Defence

Accreditations

Silicone Rubber for Military & Defence

In defence environments, there’s no room for material failure. Silicone Engineering manufactures high-performance solid and sponge silicone solutions engineered to perform in mission-critical systems across land, air, and sea.

From IP-rated gaskets in armoured vehicles to cockpit and UAV enclosure seals, our kSil®, expanSil™, and suraSil™ materials offer exceptional thermal resistance, vibration dampening, and flame retardancy, ensuring lasting protection even in the harshest conditions.

We formulate and test to globally recognised defence and aerospace specifications including AA-59588, ASTM D1056, UL94 V-0, and FAR25, with materials tailored for compliance and battlefield readiness. Our products are trusted by OEMs, Tier 1 suppliers, and engineers delivering high-performance sealing solutions where it matters most.

How can silicone be used?

Solid and sponge silicone materials are used in a wide range of applications to seal, insulate, and protect systems from flame, heat, water ingress, dust, vibration, and harsh environmental conditions.

Seals & gaskets

Silicone sponge offers ultra-low compression force deflection and excellent compression set, ideal for reliable sealing. Grades tested to UL157 and UL50E ensure performance in outdoor, fuel-exposed, and high-temperature environments.

Acoustic & vibration insulation

Silicone sponge acts as a vibration dampener and acoustic barrier, helping to protect sensitive components in armoured vehicles, UAVs, and control systems from shock, noise, and mechanical fatigue.

Thermal insulation

Both closed-cell sponge and solid silicone grades provide excellent thermal insulation, withstanding temperatures from -60°C to +230°C. Ideal for engine compartments, avionics, and high-heat enclosures across land, air, and sea platforms.

Protection & safety

Our silicone materials protect mission-critical systems from flame, vibration, environmental exposure, and extreme temperatures. Tested to UL94 V-0, UL157, UL50E, ASTM D1056, and FAR25 standards.

Sealing profiles

Custom sponge and solid extrusions, including tubing, cords, and profiles, are used to seal LED units, sensor housings, and outdoor electrical enclosures in military vehicles and equipment.

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.

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

Military & Defence Applications for Silicone Products

Silicone rubber is a robust, adaptable material used across a wide range of military applications, both interior and exterior. Its unique properties make it ideal for critical components, helping to seal, insulate, and protect equipment in demanding environments. From door and window seals to thermal insulation and engine gaskets, silicone ensures long-term reliability under extreme conditions. Its proven durability makes it a trusted choice for enhancing the safety and performance of defence systems.

Vibration Protection
UV & Ozone Resistance
Wide Temperature Range
Flame Retardancy
Weather & Environmental Sealing

Compression Set Resistance
Fuel & Fluid Resistance
Durability in Harsh Environments
Customisable Formats
Compliance to Defence Standards

Military Grades

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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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Accreditations

Silicone Rubber for Military & Defence

How can silicone be used?

Seals & gaskets

Acoustic & vibration insulation

Thermal insulation

Protection & safety

Sealing profiles

Extreme Environments, Trusted Performance

Land Air Sea

PRODUCT FEATURES

Why choose silicone rubber for the Military and Defence industry?

Temperature range

Environmental protection

Lifespan

MILITARY AND DEFENCE

Military & Defence Applications for Silicone Products

Military Grades

Related Products

Navigate Defence Applications

INDUSTRY

Land – Ground Systems

INDUSTRY

Air – Aerospace Systems

INDUSTRY

Sea – Marine Technologies