TSR 20

This is one of the most popular grades of rubber, mainly used in the production of tires.

Characteristic (TSR 20)Thailand (STR 20)Indonesia (SIR 10)Vietnam (SVR 20)Malaysia (SMR 20)
Dirt content on 44u aperture (max %wt)0.160.200.160.16
Ash content (max %wt)0.801.000.801.00
Nitrogen (max % wt)0.600.600.600.60
Volatile matter (max %wt)0.800.800.800.80
Wallace rapid plasticity (Po) min30303030
Plasticity retention index (PRI) min %40504040