Seals Eastern, Inc.
Seals, gaskets, and o-rings
Compound 7204 Data Sheet
Description: Y267-Type EPM formulation for use in high temperature steam and geothermal wells. Performs well in steam, brine, sour-gas, isobutane.
Physical Properties:
ASTM Method Property Avg. Value Min. Value
D412 Method A Tensile Strength  2218 psi  1900 psi
Ultimate Elongation  85%  80%
Stress at Elongation    
- M25  1207 psi   psi
- M50  1719 psi   psi
- M100  2001 psi   psi
Strain Energy/ Unit Volume at 20% elongation  119 psi  
Calculated Shear Modulus, G  1438 psi  
Calculated Youngs Modulus, E  4314 psi  
E-secant from the initial slope  4056 psi  
D624, Die B Tear Strength  146 psi  
Max Value Min Value
D2240, Type A Durometer Hardness  92 points  85 points
D297, 15 Specific Gravity  1.121  
D395, Test B Compression Set Avg. Value  
22 hrs @ 257F %  
70 hrs @ 257F 13%  
336 hrs @ 257F %  
D865 Dry Heat Aging
Change in Tensile Change in Elongation Change in Durometer
70 hrs @ 257F % %  points
168 hrs @ 257F % %  points
336 hrs @ 257F % %  points
1000 hrs @ 257F  %  %  points
  Temperature Data  
D746 Brittle Point  F
D1329 Temp Retraction TR-10  F
Glass Transition  -60F
Max Operating Temp  F
Rev.  8/30/1995 Shelf Life (years)

Meets specification: R-8-1, ES-R-17  


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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Format Rev: 11/17/11