As modern industrial manufacturing continuously upgrades towards stringent working conditions featuring high-temperature operation, precision sealing and fluid transportation, industries have raised ever-higher standards for the temperature resistance limit, molding adaptability and service safety of elastic sealing substrates. Restricted by their molecular structure, ordinary general silicone rubber tends to harden, crack and lose elasticity rapidly under prolonged high-temperature exposure, failing to deliver long-term reliable service in metallurgy, equipment supporting, fluid pipeline and other scenarios. Modified high-temperature resistant silicone rubber has gradually become the preferred material for parts production under harsh thermal conditions thanks to its well-balanced comprehensive properties. Among such products, the special silicone rubber series with a maximum heat resistance of 350°C has won wide recognition from manufacturers for its stable thermal performance and outstanding processing advantages.



The core strengths of this 350°C high-temperature resistant silicone rubber lie in long-term thermal stability and universal processing compatibility. Optimized via special formula modification, the material boasts exceptional sustained heat resistance. Its internal molecular structure will not be damaged easily under continuous high temperature, effectively avoiding common defects including thermal deformation and embrittlement. In terms of molding processing, it is compatible with two mainstream industrial manufacturing technologies. It can be applied to compression molding to fabricate irregular sealing parts with intricate structures, and also suitable for extrusion molding to continuously produce tubular products. Such high processing flexibility enables factories to use existing production lines without extensive equipment adjustment, greatly cutting down debugging and switching costs for raw material replacement.

For products intended for food contact applications, standardized post-curing treatment is mandatory: finished molded goods shall be baked at a constant temperature of 200°C for 4 hours to complete full post-curing. After standardized treatment, small molecular residues inside the silicone products are fully volatilized, leading to denser and more stable material structure. The finished goods comply with safety requirements when touching food materials, applicable to sanitary scenarios such as kitchen sealing components and food delivery pipelines, balancing thermal resistance and application safety perfectly.

Beyond prominent heat resistance, this silicone rubber series delivers excellent mechanical properties. Stable tensile strength, resilience and tear resistance guarantee sufficient toughness for finished products; the components will not break easily after repeated compression and stretching, extending overall service life significantly. Benefiting from these advantages, the silicone rubber is mainly used to produce two categories of finished products: high-temperature resistant sealing parts for industrial equipment, which seal gaps between equipment covers and cavities to prevent hot gas and medium leakage; heat-resistant extruded hoses applied for high-temperature fluid conveyance and hot air guiding pipelines, resisting medium erosion and continuous thermal baking.

Nowadays, competition in the high-temperature industrial supporting parts market keeps intensifying, and the durability and versatility of raw materials directly determine the quality of end products. Capable of withstanding up to 350°C, this silicone rubber integrates high heat resistance, easy processing, robust mechanical strength and food-grade adaptability, covering industrial sealing, high-temperature pipelines, food auxiliary supplies and many other sectors. It not only meets the long-term service demands of heavy industry under extreme thermal environments, but also supports the production of sanitary daily necessities. It provides stable, high-performance elastic raw material solutions for upstream and downstream manufacturers. Continuous formula upgrading will be carried out in the future to adapt to an increasing range of harsh working conditions.