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IOTA120 Methyl Phenyl Vinyl Silicone Rubber

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IOTA120 is a high-temperature vulcanized (HTV) silicone rubber base that combines excellent processing properties with stable service performance. With its adjustable modulus, superior cold resistance, high purity, and low volatile content, it serves as an ideal base material for precision rubber products.


Key Features

  • Adjustable Modulus: Through formulation design and vulcanization process adjustments, a wide range of mechanical properties—from soft elasticity to high strength—can be achieved to meet diverse product structural requirements.

  • Good Cold Resistance (Low Phenyl Content): Maintains flexibility at low temperatures, suitable for products used in cold regions or refrigerated environments.

  • High Purity, Low Volatiles: Low volatile content and minimal impurities make it suitable for applications with high cleanliness requirements.

  • Good Processability: As an HTV base polymer, it exhibits good compatibility with various fillers and additives, facilitating formulation development and production control.


Technical Specifications (Typical Values)

Property Unit Value
Color Colorless
Phenyl Content (Ph/Si) % 5–40
Molecular Weight (Mw) 10,000 40–80
Specific Gravity (25℃) 0.99–1.05
Volatile Content (150℃/3h) % ≤2

Note: These are typical values and not product specifications.


Typical Applications

  • Precision Electronics: High-reliability sealing rings, keypad pads, vibration-damping gaskets

  • Medical Devices: Low-temperature resistant catheters, flexible seals, clean-grade rubber components

  • High-End Consumer Goods: Outdoor equipment seals, weather-resistant rubber parts, high-end kitchen appliance components

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