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  Seals Eastern, Inc.
Seals, gaskets, and o-rings
 
Compound 7272 Data Sheet
Description: High-damping.
Physical Properties:
ASTM Method Property Avg. Value Min. Value
D412 Method A Tensile Strength  2290 psi  1878 psi
Ultimate Elongation  441%  333%
Stress at Elongation    
- M25  103 psi   psi
- M50  142 psi  105 psi
- M100  237 psi  147 psi
Strain Energy/ Unit Volume at 20% elongation  11 psi  
Calculated Shear Modulus, G  245 psi  
Calculated Youngs Modulus, E  736 psi  
E-secant from the initial slope  691 psi  
D624, Die B Tear Strength  275 psi  
Max Value Min Value
D2240, Type A Durometer Hardness  57 points  52 points
D297, 15 Specific Gravity  1.115  
         
D395, Test B Compression Set Avg. Value  
22 hrs @ 212F %  
70 hrs @ 212F 20%  
336 hrs @ 212F %  
D865 Dry Heat Aging
Change in Tensile Change in Elongation Change in Durometer
70 hrs @ 212F % %  points
168 hrs @ 212F -10% -21% 8 points
336 hrs @ 212F % %  points
1000 hrs @ 212F  %  %  points
  Temperature Data  
D746 Brittle Point  F
D1329 Temp Retraction TR-10  F
Glass Transition  -99F
Max Operating Temp  F
Rev.  8/30/1995 Shelf Life (years)

Meets specification: A50HD326A  
    
    

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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.

SEALS EASTERN
MOLDING SUCCESS FOR 50 YEARS.

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