DOWSIL 3145 is a MIL-A-46146 certified RTV silicone adhesive/sealant designed for protecting PCBs, sensors, and sensitive electronics. Provides dielectric insulation, flexibility, and long-term durability under extreme conditions (-55°C to +200°C). Ideal for aerospace, defense, and high-reliability applications.
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Notify me when its in stockDOWSIL™ 3145 RTV Silicone Adhesive/Sealant is a high-performance, single-component RTV silicone developed to protect electronic components, PCBs, sensors, and sensitive devices.
With its MIL-A-46146B military certification, it is widely trusted in defense, aerospace, automotive electronics, and high-reliability applications. It delivers high dielectric strength, thermal stability, and resistance to vibration, impact, and harsh environments.
Once cured, it forms an elastic, crack-resistant seal that remains stable between -55°C and +200°C. Its neutral curing system ensures non-corrosive performance, making it safe for direct contact with electronic circuits.
Key Features:
MIL-A-46146B certified – meets military and aerospace standards
Single-component RTV system – easy to apply
High adhesion strength & flexibility
Excellent dielectric insulation
Low outgassing – suitable for electronics & optics
Thermal expansion and shock resistant
Durable against vibration, moisture, impact, and chemicals
Available in cartridge, tube, and bulk packaging
Applications:
PCB conformal sealing and coating
Electronic component assembly & bonding
Military and aerospace electronics
Sensor, relay, and power module insulation
Cable and connector sealing in high-vibration environments
Embedded circuit protection (IP67–IP68)
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