Physical Properties |
Standard No. |
Units |
Value |
Hardness |
ASTM D2240 |
Shore A |
77 |
Specific Gravity |
ASTM D792 |
g/cm3 |
1.13 |
Mechanical |
|
|
|
Tensile Stress |
ASTM D412 |
kgf/cm2 |
|
At 100% elongation |
|
|
36 |
At 300% elongation |
|
|
60 |
Tensile Strength |
ASTM D412 |
kgf/cm2 |
280 |
Ultimate Elongation |
ASTM D412 |
% |
900 |
Tear Resistance (Die C) |
ASTM D624 |
kgf/cm |
75 |
Compression Set |
ASTM D395 |
|
|
At 23°C X22hr |
|
% |
10 |
At 70°C X22hr |
|
% |
35 |
Mold Shrinkage |
ASTM D955 |
m/m |
0.006 |
Thermal |
|
|
|
Vicat Softening Temperature |
ASTM D1525 |
°C |
77 |
Drying |
Conditions |
Recommend 1 |
70~80°C for 4-5 hours by dehumidifying dryer |
Injection Conditions
Barrel Temperature |
|
Feeding Zone |
170~185 |
Metering Zone |
175~190 |
Nozzle |
180~195 |
Injection Conditions (I) |
|
Injection Pressure (psi) |
1200~2000 |
Injection Speed |
Slow |
Hold Pressure (psi) |
800~1400 |
Injection Time(s) |
15~20 |
Mold Temperature |
|
10-40 |
|
Injection Conditions (II) |
|
Back Pressure (psi) |
30~80 |
Screw Speed (rpm) |
160-200 |
Cycle Time(s) |
25~35 |