Butyl Rubber (IIR) is a synthetic rubber, a copolymer of isobutylene (98%) with isoprene. The abbreviation IIR stands for Isobutylene Isoprene Rubber (IIR). Butyl rubber (IIR) is characterized by its excellent resistance to ozone. It can be compounded with fillers and other modifiers and then vulcanized into practical rubber products. Butyl rubber (IIR) is highly resistant to oxygen, ozone, and solutions of acids, alkalis and salt. The typical working temperature range of Butyl rubber (IIR) products is -50°C / -25°C to +120°C.
What are the benefits and the features of Butyl rubber?
- Air tight and gas impermeable (a property unique to butyl rubbers)
- Low glass transition temperature
- Good ozone resistance
- Displays high damping at ambient temperatures
- Good weathering, heat, and chemical resistance
- Good vibration damper
- Age resistance
For which applications can Butyl Rubber be used?
- Caulks and sealants
- Chewing gum
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