Physical properties
Item | Test method | Unit | MEF | |||
---|---|---|---|---|---|---|
x40 | x30 | x15 | x10 | |||
Bulk density | JIS K 6767 | g/cm3 | 0.025 | 0.034 | 0.067 | 0.092 |
Compressive strength | JIS Z 0235 25% Strain, 10mm/min |
MPa (kgf/cm2) |
0.067 (0.68) |
0.088 (0.90) |
0.206 (2.1) |
0.303 (3.1) |
Tensile strength | JIS K 6767 | MPa (kgf/cm2) |
0.29 (3.0) |
0.29 (3.0) |
0.56 (5.7) |
0.96 (9.8) |
Elongation | JIS K 6767 | % | 29 | 35 | 35 | 35 |
Tear strength | JIS K 6767 | N/cm (kgf/cm) |
16.7 (1.7) |
17.6 (1.8) |
36.3 (3.7) |
54.0 (5.5) |
Compression set | JIS K 6767 @25% Strain x 22hrs |
% | 5 | 4 | 5 | 5 |
Repeated-compression set | JIS K 6767 | % | 6 | 3 | 4 | 6 |
Impact resilience | JIS K 6400 | % | 48 | 38 | 30 | 20 |
Hardness | JIS K 6253 | Degree | 14〜20 | 30〜40 | 45〜52 | 60〜65 |
Note: All values shown in this table are given as typical laboratory averages, intended to serve as approximate guide and not as specifications.