Time | Action | RPM | |
---|---|---|---|
Step 1 (120°C) | 0:00 – 0:40 (40 sec) | rubber, surfactant or TDAE oil | 20 |
0:40 – 1:40 (1 min) | silica 1/2 + silane 1/2 | 40 | |
1:40 – 2:40 (1 min) | silica 1/2 + silane 1/2 | 40 | |
2:40 – 4:40 (2 min) | ZnO, St/A, 6PPD | 50 | |
4:40 – 5:00 (20 sec) | ram up and sweep | 50 | |
5:00 – 7:40 (2 min 40 sec) | extra mix and dump | 50 | |
Step 2 (50°C) | 0:00 – 0:20 (20 sec) | mix 1st MB | 20 |
0:20 – 1:00 (40 sec) | sulfur, cure accelerator (CBS, DPG) | 40 | |
1:00 – 2:00 (1 min) | extra mix and dump | 40 |