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

IndexSpecification
Dirt0.2% max
Ash1.0% max
Nitrogen0.6% max
Volatile matter0.8% max
Initial Wallace Plasticity30 min
PRI (P30 / Po) * 10050 min
Keeping time, years2 years
Country Indonesia