PROPERTY

METHOD

UNIT

SPEC.

Hardness

ASTM-D-2240

shore C

30 ~ 70

Density

ASTM-D-3757

g / cm³

0.20 ~ 0.22

Tensile Strength

ASTM-D-412

kg / cm²

22 ~ 28

Elongation

500 mm / min

%

230 ~ 250

Tear Strength

ASTM-D-3574

kg / cm²

3 ~ 3.5

Compression Set 50℃ \ 6h

ASTM-D-395

%

45 ~ 50

Dynamic compression set

%

11 ~ 13

Resiliency

ASTM-D-2632

%

35

Shrinkage

70C / 40 min

%

0.5 ~ 1

Mould Release

Good

Expansion Ratio

1.2 ~ 1.8