Parylene is often selected for defense and aerospace applications due to its ability to protect critical systems without adding weight or interfering with signals.
Defense systems demand absolute durability under harsh and unpredictable conditions. COAT-X delivers high-reliability protective films that shield sensitive electronics—such as sensors, communication modules, power systems and guidance units—from moisture, chemicals, salt fog, abrasion and extreme temperature fluctuations.
Our conformal Parylene coatings and advanced multilayer composites preserve long-term operational readiness even in corrosive, humid or high-vibration environments. Engineered for mission-critical applications, COAT-X solutions enhance stealth performance, prevent premature component failure and extend the service life of defense equipment operating on land, at sea or in the air.
Whether it is a drone (UAV) or an underwater robot (UUV), the survival of electronics depends on effective isolation from the surrounding environment. Parylene provides total waterproofing equivalent to IPX8 performance, forming an impenetrable hydrophobic barrier against salt water and salt spray, which are highly corrosive to electronic circuits. In aerial drones, where every gram directly impacts battery life and endurance, parylene delivers superior protection compared to conventional coatings while being five to ten times lighter. It also offers strong resistance to fluids, protecting control boards from exposure to fuels, lubricants, and cleaning chemicals commonly encountered on military bases, ships, or in harsh operational conditions.
In these systems, optical accuracy and thermal sensing are paramount. Parylene is clear and offers excellent transmission in the visible and near-infrared (NIR) spectrums, allowing it to coat lenses or image sensors without degrading the quality of vision. It also protects sensitive infrared detectors from moisture and corrosive gases while remaining only a few microns thick, ensuring it does not act as a thermal insulator that could skew temperature readings. In addition, its nano-grade consistency helps reduce glare and prevent light distortions that are typically caused by thicker or uneven liquid-applied polishes.
These systems are the “brain” of missiles, satellites, and aircraft, and they must operate flawlessly despite extreme vibrations and pressure changes. Parylene supports signal integrity thanks to its very low dielectric constant, ensuring it does not interfere with high-frequency signals from guidance systems such as GPS or radar, thereby avoiding delays or data loss. Unlike many other polymers, parylene also exhibits extremely low outgassing, which is critical for space systems and ballistic missiles operating at high altitudes or in vacuum conditions. In addition, it helps prevent the formation of tin whiskers, microscopic metal filaments that can cause short circuits in miniaturized, high-density electronic components.
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