Table 3. Cure Charateristics of the NR Compounds according to Petroleum Resin Content

VDR-1 VDR-2 VDR-3 VDR-4
ML (N.m) 0.216 0.188 0.158 0.128
MH(N.m) 1.497 1.281 1.093 0.967
ΔTorque (N.m) 1.281 1.093 0.935 0.839
t10 (min) 1.94 1.91 2.10 2.16
t90(min) 3.75 3.71 3.95 3.98