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Seals Eastern, Inc.
Seals, gaskets, and o-rings
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Compound 7272 Data Sheet
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| Description: High-damping. |
| Physical Properties: |
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ASTM Method |
Property |
Avg. Value |
Min. Value |
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D412 Method A |
Tensile Strength |
2290 psi |
1878 psi |
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Ultimate Elongation |
441% |
333% |
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Stress at Elongation |
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- M25 |
103 psi |
psi |
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- M50 |
142 psi |
105 psi |
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- M100 |
237 psi |
147 psi |
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Strain Energy/ Unit
Volume at 20% elongation |
11 psi |
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Calculated Shear Modulus,
G |
245 psi |
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Calculated Youngs
Modulus, E |
736 psi |
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E-secant from the initial
slope |
691 psi |
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D624, Die B |
Tear Strength |
275 psi |
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Max Value |
Min Value |
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D2240, Type A |
Durometer Hardness |
57 points |
52 points |
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D297, 15 |
Specific Gravity |
1.115 |
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D395, Test B |
Compression Set |
Avg. Value |
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22 hrs @ 212F |
% |
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70 hrs @ 212F |
20% |
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336 hrs @ 212F |
% |
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D865 |
Dry Heat Aging |
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Change in Tensile |
Change in Elongation |
Change in Durometer |
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70 hrs @ 212F |
% |
% |
points |
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168 hrs @ 212F |
-10% |
-21% |
8 points |
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336 hrs @ 212F |
% |
% |
points |
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1000 hrs @ 212F |
% |
% |
points |
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Temperature
Data |
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D746 |
Brittle
Point |
F |
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D1329 |
Temp
Retraction TR-10 |
F |
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Glass
Transition |
-99F |
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Max Operating
Temp |
F |
| Rev. |
8/30/1995 |
Shelf Life (years) |
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Meets specification: A50HD326A
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RETURN
LEGAL NOTICE: Seals Eastern makes no representations or warranties, implied or otherwise, on the
accuracy or completeness of the data herein.
Copyright 2011 Seals Eastern, Inc.
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SEALS EASTERN
MOLDING SUCCESS FOR 50 YEARS.
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7182 ™ is a trademark of Seals Eastern, Inc.;
AFLAS ® is a registered trademark of Asahi Glass Co., Ltd.;
Viton ® is a registered trademark of Dupont Performance Elastomers, LLC.
Format Rev: 11/17/11
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