FLEX Yellow
FIRM Blue
Hardness shore A scale
35
40
Tear strength ASTM die B KN/M
30.52
31.18
Tensile strength TS/MPA
13.18
15.56
Specific gravity gm/cm
1.23
1.35
Elongation %
712.09
651.56
Average shrinkage %
2.3
1.7
Cure temp degrees F’/C’
302/150
302/150
Cure time minutes per ¼” thickness
15
15
Uncured Rubber Shelf life (years)
>10
>10
Rubber mold storage life (years)
>20
>20