Table 2. Mixing Procedure of Silica-filled WSBR Compounds

Step	Time, min	Procedure	Temperature, °C1)
Initial	0	charge WMB with TDAE oil	110
	5	add ZnO and S/A
	10	dump
Final	0	charge initial masterbatch	70
	0.5	add sulfur, CBS, and DPG
	2.5	mixing completed

set temperature