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AFLAS O-rings
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Seals Eastern, Inc.
Base and Alkaline resistant
seals, gaskets, and o-rings
for high pH service.

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7182X ™ formulated Aflas ® for OAT coolant service
7182X ™ 80 Durometer FEPM
Description: Excellent long-term, high temperature (220C) service in aqueous & nonaqueous electrolytes, including organic acid (OAT) coolants. Outstanding long-term resistance to compressive stress relaxation in thermally and chemically aggressive environments. Ultra low compression set.
Physical Properties:
ASTM Test Method Property Avg.  Value Min Value
D412 Tensile Strength: 21.0 MPa 3045 psi 2800 psi
Ultimate Elongation: 130 % 100 %
Stress at Elongation:
- M25 2.9 MPa 423 psi - - -
- M50 6.1 MPa 888 psi 550 psi
- M100 14.3 MPa 2075 psi 1500 psi
Strain Energy at 20% Strain:  0.3 MPa 43 psi - - -
Calculated Shear Modulus, G: 5.6 MPa 809 psi - - -
Calculated Young Modulus, E: 16.7 MPa 2428 psi - - -
E-secant from the initial slope: 15.7 MPa 2282 psi - - -
D624,
Die B
Tear Strength: 1.3 MPa 182 psi
Max Value Min Value
D2240,
Typ A
Durometer Hardness: 84 pts 78 pts
D297,
16.3.1
Specific Gravity: 1.56 1.53
D395, Meth.B: 
COMPRESSION SET:  -120 O-ring -214 O-ring
(a) Dry Heat ASTM Button   0.103 c/s   0.139 c/s 
      70 hrs @ 200C (392F) 11% - - - - - -
      168 hrs @ 200C 12% - - - - - -
      336 hrs @ 200C 14% - - - - - -
      1000 hrs @ 200C - - - 37% 32%
(b) Water-Ethylene Glycol
Nalcool® 3000 (6%) (pH 11.0)
      10 hrs @ 200C - - - 29% 26%
      100 hrs @ 200C - - - 47% 40%
      10000 hrs @ 200C - - - 58% 57%
D865
DRY HEAT AGING:  Tensile Chg Elongation Chg Durometer Chg
      70 hrs @ 200C 7% 16% 0
      1000 hrs @ 200C -2% 42% -4 pts

SEALS EASTERN
MOLDING SUCCESS FOR 50 YEARS.

FastDash ™ is a trademark of Seals Eastern, Inc.; OringOnline ® is a registered trademark of Seals Eastern, Inc.; 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.