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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

Properties IMPRAMER
R 1675
Unit Test Method
Mooney Viscosity (ML 1+8) @ 125°С (un-massed) 46.0 – 56.0 MU ASTM D1646
Unsaturation 1.40 – 1.80 Mol % RSEPL Method
Volatile Matter 0.30 Max. wt % ASTM D5668
Non-Staining Antioxidant 0.03 Min. wt % RSEPL Method
Ash 0.30 Max. wt % ASTM D5667