Table 1. Basic Formulation of NR/BIIR Blends

Description	T-1	T-2	T-3	T-4	T-5
NR	100	75	50	25	-
BIIR	-	25	50	75	100
Carbon Black N-339	50	50	50	50	50
Zinc Oxide	5	5	5	5	5
Stearic Acid	3	3	3	3	3
Sulfur (Oil 1%)	2.5	2.5	2.5	2.5	2.5
MBTS	0.6	0.6	0.6	0.6	0.6
Total	161.1	161.1	161.1	161.1	161.1