In high-end industries such as aerospace, polar exploration, rail transit, and precision electronic encapsulation, sealing materials must exhibit flexibility at low temperatures, electrical insulation, and long-term weather resistance. Conventional methyl silicone rubbers tend to harden and crack in extreme cold, limiting their use in such environments. Phenyl silicone rubber compound, with its enhanced molecular design, has emerged as a key material for low-temperature sealing.

Formulated from phenyl-based polysiloxanes and optimized with functional vinyl groups, this heat-vulcanized rubber compound remains highly elastic and mechanically stable from -90°C to +250°C. The phenyl groups significantly improve resistance to crystallization, ensuring consistent performance under cryogenic, high-altitude, or vacuum conditions.

Phenyl silicone rubber is widely used in aerospace O-rings, train door seals, cryogenic storage connectors, and insulating pads for optics and electronics. Its excellent ozone resistance, anti-aging properties, and low compression set make it ideal for long-term, mission-critical systems. Compared to standard silicone rubbers, it also delivers higher volume resistivity and more stable dielectric properties—essential for microelectronics, sensors, and radar modules.

As industries continue to demand greater safety and durability in extreme environments, phenyl silicone rubber compounds are expanding their applications into defense systems, deep-sea engineering, and emerging energy technologies—offering a trusted solution for complex sealing and insulation challenges.

Food contact grade HTV silicone rubber, plz check MY D631