Seals Eastern, Inc.
Seals, gaskets, and o-rings
Compound 7284 Data Sheet
Description: High damping. Non-conductive in ionized environment.
Physical Properties:
ASTM Method Property Avg. Value Min. Value
D412 Method A Tensile Strength  1250 psi  852 psi
Ultimate Elongation  490%  289%
Stress at Elongation    
- M25  160 psi   psi
- M50  261 psi  139 psi
- M100  391 psi  186 psi
Strain Energy/ Unit Volume at 20% elongation  27 psi  
Calculated Shear Modulus, G  430 psi  
Calculated Youngs Modulus, E  1290 psi  
E-secant from the initial slope  1213 psi  
D624, Die B Tear Strength  186 psi  
Max Value Min Value
D2240, Type A Durometer Hardness  75 points  65 points
D297, 15 Specific Gravity  1.24  
D395, Test B Compression Set Avg. Value  
22 hrs @ 212F %  
70 hrs @ 212F 63%  
336 hrs @ 212F %  
D865 Dry Heat Aging
Change in Tensile Change in Elongation Change in Durometer
70 hrs @ 212F % %  points
168 hrs @ 212F 2.9% -66% 7 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)


LEGAL NOTICE: Seals Eastern makes no representations or warranties, implied or otherwise, on the accuracy or completeness of the data herein.

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Format Rev: 11/17/11