Military & Defence

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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.

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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.

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Seals & gaskets

Silicone sponge offers excellent compression recovery for reliable sealing in harsh environments. Grades tested to UL157 and UL50E provide proven performance in demanding applications.

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Acoustic & vibration insulation

Silicone sponge reduces vibration and noise, helping protect sensitive equipment and improve the reliability of defence systems.

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Thermal insulation

Closed-cell sponge and solid silicone provide excellent thermal insulation from -60°C to +230°C, ideal for engines, electronics, and high-heat defence applications.

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Protection & safety

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

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Sealing profiles

Custom sponge and solid silicone extrusions, including tubing, cords, and profiles, provide reliable sealing for enclosures, sensor housings, and defence equipment.

Extreme Environments, Trusted Performance

Military platforms operate in environments that demand exceptional material performance, from extreme heat and freezing temperatures to saltwater, water ingress, UV exposure, and mechanical stress. Silicone Engineering’s materials provide reliable sealing, insulation, and protection across land, air, and sea.

Operating from -60°C to +230°C, our sponge and solid silicone grades maintain flexibility and sealing integrity in harsh conditions. UL94 V-0 grades within our V-0 and 2D ranges provide dependable flame protection for mission-critical defence applications.

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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

Military & Defence Applications for Silicone Products

Silicone rubber is a durable, adaptable material used across military applications to seal, insulate, and protect mission-critical systems. From enclosure gaskets and thermal insulation to engine components and electrical protection, silicone delivers reliable performance in demanding defence environments.

  • 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
Gap Filling Flexible Duct Connections Avionics Enclosure Seals Access Panel Gaskets Thermal Insulation HVAC Seals & Gaskets Hatch & Door Seals Seat Cushioning Electronic Enclosure Seals Flooring System Thermal Insulation HVAC Seals & Gaskets Window Seals Thermal Insulation HVAC Seals & Gaskets Electrical Cabinet Gaskets Hatch & Door Seals Flexible Duct Connections HVAC Seals & Gaskets Radar & Sensor Enclosure Seals Engine Room Thermal Insulation HVAC Seals & Gaskets Hatch & Door Seals Seat Cushioning Electronic Enclosure Seals Flooring System Thermal Insulation HVAC Seals & Gaskets Hatch Seals Light Seals Bulkhead Seals Avionics Enclosure Seals Sensor Housing Seals Hatch & Door Seals Radar Enclosure Seals HVAC Seals & Gaskets Seat Cushioning

Military Grades

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Navigate Defence Applications

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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