EXXON Halogenated Butyl Polymers

EXXON Bromobutyl Polymers

Bromobutyl (Bromo-Isobutene-Isoprene Rubber) (BIIR) from ExxonMobil Chemical

As EXXON Bromobutyl has the predominantly saturated backbone of butyl, it has many of the attributes of the butyl molecule:

  • Low permeability to air, gases and moisture
  • Vibration damping
  • Low glass transition temperature
  • Resistance to ageing and to weathering from atmospheric exposure
  • Wide vulcanization versatility
  • Fast cure rates
  • Processing safety: no nitrosamines or nitrosamines precursors


  • ExxonMobil Chemical offers a range of polymer viscosities and cure responses, reflecting adjustments in functionality and additives content. EXXON Bromobutyl is structurally similar to EXXON Chlorobutyl.

    Click to view EXXON Bromobutyl Polymers web page

      Chemical Resistance Guide

    view specifications  view MSDS    request a sample    EXXON BROMOBUTYL 2222 RFU
    view specifications  view MSDS    request a sample    EXXON BROMOBUTYL 2244 RFU
    view specifications  view MSDS    request a sample    EXXON BROMOBUTYL 2255 RFU
    Halobutyl rubbers offer greater cure compatibility in blends with diene polymers. Other properties similar to butyl rubber. BROMOBUTYL grades are faster curing than CHLOROBUTYL grades.

    EXXON Chlorobutyl Polymers

    Chlorobutyl (Chloro-Isobutene-Isoprene Rubber) (CIIR) from ExxonMobil Chemical Company

    Halobutyl rubbers offer greater cure compatibility in blends with diene polymers. Other properties similar to butyl rubber. BROMOBUTYL grades are faster curing than CHLOROBUTYL grades.

    Click to view EXXON Chlorobutyl web page.

      view MSDS    request a sample    EXXON CHLOROBUTYL 1066 EVA
    view specifications  view MSDS    request a sample    EXXON CHLOROBUTYL 1066 RFU
    view specifications  view MSDS    request a sample    EXXON CHLOROBUTYL 1068 RFU

    EXXON is a trademark of ExxonMobil Chemical Corporation.


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       R.T. Vanderbilt Company, Inc.
     30 Winfield Street
     Norwalk, CT   06856
     800.243.6064
     e-mail:write e-mail Rubber Sales Inquiry
     fax:203.853.1452