Natural rubber SIR
A natural high molecular weight polyisoprene obtained from the sap of rubber-bearing plants. It has high cohesive strength and tackiness. It is obtained directly from filtered latex, then subjected to mechanical granulation and pressed into briquettes.
It is used for the production of tires, and a variety of rubber technical products — shock absorbers, seals, drive belts, conveyor belts.
Name — Cis-1,4 Poly Isopropene
CAS — 9003-31-0
Physical and chemical properties
| Index | Specification |
|---|---|
| Dirt | 0.2% max |
| Ash | 1.0% max |
| Nitrogen | 0.6% max |
| Volatile matter | 0.8% max |
| Initial Wallace Plasticity | 30 min |
| PRI (P30 / Po) * 100 | 50 min |
| Keeping time, years | 2 years |
| Country | Indonesia |
