Dow Corning Sylgard 164 Silicone Encapsulant Part A is a durable silicone encapsulation compound developed for the protection of electronic components and assemblies in harsh operating environments. This gray silicone material offers excellent dielectric properties, resistance to moisture and chemicals, and reliable thermal stability over a wide temperature range. Commonly used in electronics, automotive, aerospace, and industrial manufacturing applications, Sylgard 164 helps improve component reliability and long-term performance. Supplied in a 24.9 kg pail for industrial and high-volume production use.