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.
| 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 |
