Compound 7145 Data Sheet
78-duro FKM
ASTM Method |
Property |
Avg. Value |
Min. Value |
D412 Method A |
Tensile Strength |
2800 psi |
1883 psi |
|
Ultimate Elongation |
180% |
118% |
|
Stress at Elongation |
|
|
|
- M25 |
306 psi |
|
|
- M50 |
544 psi |
400 psi |
|
- M100 |
1230 psi |
698 psi |
|
Strain Energy/ Unit
Volume at 20% elongation |
32 psi |
|
|
Calculated Shear Modulus,
G |
596 psi |
|
|
Calculated Youngs
Modulus, E |
1788 psi |
|
|
E-secant from the initial
slope |
1681 psi |
|
D624, Die B |
Tear Strength |
210 lbf/inch |
|
D297, 15 |
Specific Gravity |
1.943 |
|
|
|
Max Value |
Min Value |
D2240, Type A |
Durometer Hardness |
78 points |
75 points |
|
|
|
|
D395, Test B |
Compression Set |
Avg. Value |
|
|
22 hrs @ 392F |
11% |
|
|
70 hrs @ 392F |
19% |
|
|
336 hrs @ 392F |
24% |
|
ASTM D865 - Dry Heat Aging:
Hours Aged |
Change in Tensile |
Change in Elongation |
Change in Durometer |
70 hrs @ 392F |
-12% |
2% |
0 points |
168 hrs @ 392F |
-2% |
10% |
1 points |
336 hrs @ 392F |
-5% |
2% |
0 points |
1000 hrs @ 392F |
9% |
13% |
0 points |
Temperature Properties and Shelf Life:
ASTM / Other |
Description |
Value |
D746 |
Brittle Point |
|
D1329 |
Temp Retraction TR-10 |
|
|
Glass Transition |
-4F |
|
Max Operating Temp |
|
|
Shelf Life (years) |
15 |
Rev. 3/1/2002
RETURN
Premium Quality Seals...
For a Cleaner, Safer, More Reliable World.TM