Seals Eastern, Inc.

7182X gaskets, seals, and o-rings

Solve Leaking Problems in Steam and High pH Fluids

Tel: 732-747-9200

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7182XTM formulated Aflas® for OAT coolant and steam service


Description: 80-durometer FEPM. 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 such as high pH coolants and steam. 7182X exhibits ultra low compression set even after long term service.

7182X 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

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