Table 3. Mixing Procedures for Silica Filled WMB Compounds

Mixing time (min:s)	Actions for SMB mixing step
0:00	add silica WMB, TDAE oil
3:40	sweep
5:40	add zinc oxide, steraric acid, 6PPD
12:00	Dump (155°C)
Mixing time (min:s)	Actions for FMB mixing step
0:00	add SMB
0:20	add sulfur, cure accelerators
2:00	dump