Brominated Butyl Rubber

Bromo butyl rubber BIIR is a copolymer rubber of bromo isobutylene and
isoprene. It is derived from halogenating butyl rubber with bromine in a
continuous process. Bromo butyl rubber possesses other fundamental advantages
including stability at high temperatures, rejuvenating capabilities, stronger
resistance, increased adhesion to other rubbers and metals, and lastly,
improved ozone and environmental resistance.

Specification of Brominated Butyl Rubber
Grades Unit 2302 2402 2502
Appearance / White or Amber Bales
Density g/cm³ 0.93
Mooney Viscosity MU 32±5 39±5 46±5
ML(1+8)125℃
Volatiles WT% ≤0.7
Antioxidant WT% Non-staining ≥0.02
Bromine Content WT% 2.1±0.2
Total Ash Content WT% ≤0.7
Stabilizer Content WT% 1.3±0.3

Application of Brominated Butyl Rubber
Bromo butyl rubber BIIR has superior air impermeability, outstanding
performance of heat-resistance, chemical corrosion-resistance, thermal aging
resistance, and good curing performance. It can be widely used for tire inner
liners, medical stoppers, corrosion-resistance lining, protective clothing,
shoes production and TPV industry.

As a rubber raw materials company, we will do our best to meet all the needs of
customers.

Minimum Order: 100 kilograms

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