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  Seals Eastern, Inc.
Seals, gaskets, and o-rings
 
Compound 5243 Data Sheet
Description: Low extactable, 70-duro neoprene for refrigerant and general purpose
Physical Properties:
ASTM Method Property Avg. Value Min. Value
D412 Method A Tensile Strength  2603 psi  1947 psi
Ultimate Elongation  312%  194%
Stress at Elongation    
- M25  179 psi   psi
- M50  293 psi  148 psi
- M100  582 psi  203 psi
Strain Energy/ Unit Volume at 20% elongation  20 psi  
Calculated Shear Modulus, G  360 psi  
Calculated Youngs Modulus, E  1081 psi  
E-secant from the initial slope  1017 psi  
D624, Die B Tear Strength  293 psi  
Max Value Min Value
D2240, Type A Durometer Hardness  75 points  65 points
D297, 15 Specific Gravity  1.43  
         
D395, Test B Compression Set Avg. Value  
22 hrs @ 257F %  
70 hrs @ 257F 31%  
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  -40F
Max Operating Temp  F
Rev.  9/15/1997 Shelf Life (years)

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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