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Home Impramer Bromobutyl Rubber

Product Information

Bromobutyl rubber is a derivative of butyl rubber which is produced by brominating butyl rubber in a continuous halogenation process.

Bromobutyl is very similar to Chlorobutyl in structure and properties. However it has higher reactivity than Chlorobutyl therefore offering highly versatile curing system.

Tubeless Tire inner liners

Pharmaceutical Closures

Hoses

Parameter BIIR-1* BIIR-2* BIIR-3* BIIR- 4* Test Method
Viscosity ML 1+8 (125°C) (Mooney Units) 28-35 36-42 43-50 41-49 ISO-289 ASTM D 1646
Fixed bromine, (% wt) 1.8-2.2 1.8-2.2 1.8-2.2 2.0–2.2 ASTM D3566
Ash, (% wt., max.) 0.7 0.7 0.7 0.7 ISO -247 ASTM D 5667
Non-Staining Anti-oxidant, (% wt. Min). 0.05 0.05 0.05 0.05 Internal Method
Drying losses, % wt. Max 0.7 0.7 0.7 0.7 ISO-248 ASTM D 5668

* Grade names are temporary