... viscosity maximum 20, low molecular weight, used as dispersion additives in granulation. TPI-II: Mooney viscosity 20~40, good ... 80, good dynamic performance, acceptable machining performance, used in tyres and shock absorption products. TPI-V: Mooney viscosity ... VI: Mooney viscosity minimum 100, difficult machining performance, used in materials for special purposes, oil-extended materials, etc. trans ...