As high-speed railways, subways, and intercity trains become faster and smarter, sealing materials face stricter demands for heat resistance, radiation durability, and service life. IOTA hydroxy phenyl silicone rubber, with its outstanding thermal and mechanical properties, is emerging as a key material in advanced sealing systems for rail vehicles.

This rubber is a high-performance elastomer based on phenyl-modified polysiloxane. The incorporation of phenyl groups significantly enhances thermal oxidative stability, allowing the material to perform continuously at temperatures above 250°C—well beyond the capabilities of traditional methyl silicone rubber.

IOTA hydroxy phenyl silicone rubber is especially suitable for use in brake systems, electrical compartment seals, and heat insulation gaskets in rail vehicles. It also offers superior low-temperature flexibility, flame retardancy, and dielectric strength, meeting stringent requirements for operation under harsh environmental and electromagnetic conditions.

The presence of reactive hydroxy groups promotes efficient vulcanization and facilitates precise compression molding, making it ideal for high-precision seal production with excellent consistency and reliability.

As the rail transit industry advances, IOTA hydroxy phenyl silicone rubber is being widely adopted in domestic high-speed rail projects and urban rail equipment, providing durable and dependable solutions for next-generation transport systems.