Table 3. Mixing Conditions of EPDM Compound

Mixing condition Time (hr) Temp. (°C) Ingredients
1 stage CMB 1 step 45~50 Polymer
2 step 60 Filler, Flame retardant, Antioxidant, Processing aid, Co-crosslink agent
3 step 100 Cleaning
4 step 130 Dump
5 step 24 Room temp. Cooling
2 stage FMB 6 step 55~60 CMB, Crosslink agent
7 step 90 Dump
8 step 16 Room temp. Cooling