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Seals Eastern 7272 Butyl and Halobutyl Rubber

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer Seals Eastern, Inc
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Seals Eastern 7272 Butyl and Halobutyl Rubber.pdf
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Material Notes:
General purpose Chlorobutyl; High dampingInformation provided by Seals Eastern, Inc.
Physical Properties Metric English Comments
Specific Gravity 1.115 g/cc
1.115 g/cc
ASTM D297, 15
Mechanical Properties Metric English Comments
Hardness, Shore A >= 52
>= 52
ASTM D2240, Type A
57
57
AVG; ASTM D2240, Type A
65

@Temperature 100 °C,
Time 605000 sec
 65

@Temperature 212 °F,
Time 168 hour
 After Dry Heat Aging; ASTM D865
Tensile Strength at Break >= 12.95 MPa
>= 1878 psi
ASTM D412 Method A
15.8 MPa
2290 psi
AVG; ASTM D412 Method A
14.21 MPa

@Temperature 100 °C,
Time 605000 sec
 2061 psi

@Temperature 212 °F,
Time 168 hour
 After Dry Heat Aging; ASTM D865
Tensile Strength, Yield 0.710 MPa
103 psi
AVG Stress at Elongation M25; ASTM D412 Method A
>= 0.724 MPa
>= 105 psi
Stress at Elongation M50; ASTM D412 Method A
0.979 MPa
142 psi
AVG Stress at Elongation M50; ASTM D412 Method A
>= 1.01 MPa
>= 147 psi
Stress at Elongation M100; ASTM D412 Method A
1.63 MPa
237 psi
AVG Stress at Elongation M100; ASTM D412 Method A
Elongation at Break >= 333 %
>= 333 %
ASTM D412 Method A
441 %
441 %
AVG; ASTM D412 Method A
348 %

@Temperature 100 °C,
Time 605000 sec
 348 %

@Temperature 212 °F,
Time 168 hour
 After Dry Heat Aging; ASTM D865
Modulus of Elasticity 0.00507 GPa
0.736 ksi
ASTM D412 Method A
Shear Modulus 0.00169 GPa
0.245 ksi
ASTM D412 Method A
Secant Modulus 0.00476 GPa
0.691 ksi
ASTM D412 Method A
Tear Strength Test 275
275
(psi); ASTM D624, Die B
Compression Set 20 %

@Temperature 100 °C,
Time 252000 sec
 20 %

@Temperature 212 °F,
Time 70.0 hour
 ASTM D395, Test B
Thermal Properties Metric English Comments
Glass Transition Temp, Tg -72.8 °C
-99.0 °F
ASTM D1329
Descriptive Properties Value Comments
Strain Energy / Unit Volume at 20% Elongation (psi) 11
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