IR is a general purpose synthetic rubber having almost the same molecular structure as natural rubber. When compared with natural rubber, it dose not contain the natural non-rubber components such as proteins and It has uniform quality, excellent hue, and no contamination. It also has the characteristic of enabling the shortening of mastication and mixing time.
| Manufacturer | Tradename | Mooney ML (1+4) 100ºC | Technical Documents (TDS) |
|---|---|---|---|
| Zeon | IR 2200 | 82 |  |
| Zeon | IR 2200L | 70 | |
| Goodyear | Natsyn® 2200 | 80 | |
| Goodyear | Natsyn® 2210 | 60 | |
| Nizhnekamskneftheim | SKI-3 Group 1 | 75 - 85 | |
| Nizhnekamskneftheim | SKI-3 Group 2 | 65 - 74 | |
| JSR | JSR IR 2200 | 82 | |
