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Product Information

Butyl rubber is a synthetic polymer, a copolymer of isobutylene with isoprene. The key advantages butyl rubber offers is superlative air-barrier performance with superior flex properties. Butyl Rubber abbreviated as IIR (Isobutylene-Isoprene copolymer) is extensively used to manufacture tire’s Inner Tube. It offers matchless ozone & weather resistance along with heat stability.

Inner tubes for tires

Tire curing bladders

Inner tube valve

Pharmaceutical closures

Sports ball bladders

Parameter IMPRAMER
R 1675
Test Method
Mooney viscosity ML 1+8 (125°С) 46-56 ASTM D 1646
Unsaturation, % mol. 1.4-1.8 Manufacturer Testing Method
Volatile Matter, % wt ≤ 0.3 ASTM D 5668
Non-Staining Antioxidant, % wt 0.02– 0.08 Manufacturer Testing Method
Ash, %, wt ≤ 0.3 ASTM D 5667
Calcium stearate, %, wt ≤ 1.2 Manufacturer Testing Method