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Butyl rubber

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Butyl rubber

Butyl rubber, also known as isobutylene-isoprene rubber (IIR), stands out as a unique synthetic elastomer renowned for its exceptional impermeability to gases and liquids, excellent weathering resistance, and versatility. Produced through the copolymerization of isobutylene with a small amount of isoprene, butyl rubber exhibits a remarkable combination of properties that make it invaluable across various industrial applications.

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Butyl rubber

Functions and Characteristics

  1. Impermeability: The rubber is inherently impermeable to gases, making it an ideal choice for applications requiring a reliable barrier against air and moisture. This property is particularly advantageous in tire inner tubes, tubeless tire liners, and pharmaceutical closures.
  2. Chemical Stability: The rubber demonstrates excellent chemical stability, rendering it resistant to the deteriorating effects of acids, alkalis, and various chemicals. This characteristic extends its utility in applications involving exposure to corrosive substances.
  3. Weather Resistance: The polymer structure of butyl rubber imparts exceptional weather resistance, ensuring durability and performance in outdoor applications. It remains unaffected by ozone and sunlight, making it suitable for applications such as roof flashing and seals.
  4. Low Gas Permeability: Butyl rubber exhibits low gas permeability, making it an ideal choice for manufacturing inner tubes of tires, where maintaining proper inflation is crucial for optimal performance and safety.
  5. Flexibility at Low Temperatures: Butyl rubber retains flexibility even at low temperatures, allowing it to withstand freezing conditions without becoming brittle. This property makes it suitable for applications in cold climates.
  6. Vibration Damping: The inherent damping properties of butyl rubber make it useful in applications requiring vibration isolation, such as engine mounts and shock absorber bushings in automotive and industrial settings.
  7. Electrical Insulation: The rubber possesses good electrical insulation properties, contributing to its use in cable insulation and electrical applications where resistance to electrical currents is essential.

Major Applications

Pharmaceutical Stoppers and Closures:

The impermeability of butyl rubber to gases makes it an ideal material for pharmaceutical closures and stoppers, preserving the integrity of medications and vaccines.

Roofing Materials:

Butyl rubber's weather resistance makes it suitable for roofing applications, including roof flashing and seals, where it provides a durable and waterproof barrier.

  • Applications

    It is widely used for inner tubes, curing bladders, shoe soles, ball bladders, sealing materials electrical insulating materials, etc.

  • Product Packaging

    25kgper bale, individuallypacked inmodified PE film.P
    lywood case or IBC,1200kgs/case,48balesin total.

  • Safety

    The solid high-molecular polymer with stable and reliable performance, harmless to humans, animals, plants as well as ecology environment. For any relevant safety data, see details in MSDS.

  • Storage

    The item mustbe stored in dry and ventilative warehouseandkeptout ofdirect sunlight, moisture and co ntamination. The storage period is 24 months.

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