Table 1. The Formulation of CR O-ring

Material CR
DENCA CR S40V 100.0
N 550 45.0
Dibutoxyethoxyethyladipate 5.0
Zinc oxide 5.0
Magnesium oxide 4.0
Stearic acid 0.5
Octylated diphenylamine 1.0
Tri-methylthiourea 1.5
Tetramethyl thiuram monosulphide 0.5
N-cyclohexyl-2-benzothiazole sulfenamid 0.5