The electronics used in military, aerospace, spacecraft, and telecommunications equipment require a high level of protection to perform reliably in extreme conditions. Momentive silicones are formulated to offer superior sealing and protective coatings to maximize the life of critical-service electronics.
Momentive silicone materials are available in formulations that have the following benefits:
- High thermal conductivity to prevent excessive heat buildup in high power density devices
- Low out gassing grades for spacecraft applications in vacuum conditions
- Grades available with wide operating temperature ranges, from -175 °F to 500 °F
- Outstanding adhesion to a variety of substrates
- Property stability under harsh operating conditions
- Low modulus to allow for thermal expansion mismatch without damaging electronic components
- Elastomeric behavior to prevent damage from vibration and fatigue
- EMI Shielding grades available
- Grades available with low dielectric constant and low dielectric loss for antenna applications
- Optically transparent grades available
Momentive silicones are available as greases, encapsulants, conformal coatings, and potting materials. They can be formulated to a range of viscosities and as one part or two part systems to be compatible with many different types of delivery equipment.
Applications for thermal management silicones include:
- Power modules
- Sensors
- Board assemblies
- LED assemblies
- Black box encapsulant
- Avionic display unit adhesion
- Protective coating for critical circuits, terminals
- Radome sealant
- Engine component, thrust reverser thermal protection
- Fuel tank coating, sealant
Applications for low out gassing RTV silicones include:
- Cast in place heat shielding
- Solar array and optical equipment sealing
- Thermal insulation of sensitive components
- Protective coatings for critical equipment
- Encapsulants & potting for high heat
- Interior and exterior adhesives
- Flexible composite coatings
Need help selecting the right silicone for your high performance application? Ask a Plastics Expert or explore Momentive silicone adhesives.