Parker Chomerics Elastomer Binder & Elastomer Filler Selection Guide

of 9
Conductive Elastomer EMI Gaskets Molded and Extruded Materials Selection Guide
选型目录:
EMI Materials
Gasket
Elastomer Binder & Elastomer Filler
Chomerics
6
Table 5a: Quick Reference Guide for Selecting Conductive Elastomers - Typical Commercial and Military Applications
(M) = Molded only, (E) = Extruded only
Material
Filler
Binder
Shielding
Corrosion
(on Aluminum)
MIL-DTL-83528
CHO-SEAL 6502
Nickel-Aluminum
Silicone
mmmmm
mmmmm
-----
CHO-SEAL 6503
Nickel-Aluminum
Fluorosilicone
mmmmm
mmmmm
-----
CHO-SEAL 1298
Silver-Aluminum
Fluorosilicone
mmm
mmmm
Type D
CHO-SEAL 1285
Silver-Aluminum
Silicone
mmmm
mmm
Type B
CHO-SEAL 1287
Silver-Aluminum
Fluorosilicone
mmm
mmm
Type D
CHO-SEAL 1215
Silver-Copper
Silicone
mmmmm
m
Type A
CHO-SEAL 1217
Silver-Copper
Fluorosilicone
mmmmm
m
Type C
CHO-SEAL S6305
Nickel-Graphite
Silicone
mmm
mm
-----
CHO-SEAL 6370
Nickel-Graphite
Silicone
mm
mm
-----
CHO-SEAL 6371
Nickel-Graphite
Silicone
mm
mm
-----
CHO-SEAL 6308
Nickel-Graphite
Silicone
mmm
mm
-----
CHO-SEAL 6330
(M)
Nickel-Graphite
Silicone
m
mm
-----
CHO-SEAL L6303
Nickel-Graphite
Fluorosilicone
mmm
mm
-----
CHO-SEAL 1350
Silver-Glass
Silicone
mmmm
m
Type M*
CHO-SEAL 1310
(M)
Silver-Glass
Silicone
mmm
m
-----
CHO-SEAL 1273
Silver-Copper
Silicone
mmmm
m
-----
CHO-SEAL 1270
(M)
Silver-Copper
Silicone
m
m
-----
Table 5b: Quick Reference Guide for Selecting Conductive Elastomers - Specialty Elastomers
(M) = Molded only, (E) = Extruded only
Material
Filler
Binder
Shielding
Corrosion
(on Aluminum)
MIL-DTL-83528
CHO-SEAL 1224
(M)
Silver
Silicone
mmmmmm
m
Type E
CHO-SEAL 1221
(M)
Silver
Fluorosilicone
mmmmmm
m
Type F
CHO-SEAL 1401
Silver
Silicone
mmmm
m
------
CHO-SEAL 1239
(M)
Silver-Copper
Silicone/Cu Mesh
mmmm
m
Type G
CHO-SEAL 1212
(M)
Silver-Copper
Silicone
mmmmm
m
Type K
CHO-SEAL 6435
(M)
Silver-Nickel
EPDM
mmm
mmm
-----
CHO-SEAL 6307
(M)
Nickel-Graphite
EPDM
mm
mmm
-----
CHO-SEAL 6452
(E)
Nickel-Graphite
EPDM
mmm
mmmm
-----
CHO-SEAL 6460
(M)
Nickel-Aluminum
EPDM
mmmm
mmmmm
-----
CHO-SEAL V6433
(M)
Silver-Nickel
Fluoro/Fluorocarbon
mmm
mmm
-----
CHO-SEAL S6600
(M)
Carbon
Silicone
m
m
-----
*
Molded
version of 1350 meets Mil-DTL-83528 type M specifications.
Extruded
version of 1350 meets Mil-DTL-83528 type M specifications except elongation (60/260).
Silicone
EPDM
Elastomer Binder Legend
Fluorosilicone
Fluorocarbon/
Fluorosilicone
7
ENGINEERING
YOUR
SUCCESS.
Note A:
Compression set is expressed as a percentage of deflection per ASTM D395 Method B, at
25% deflection. To determine percent recovery, subtract 0.25 of the stated compression set value
from 100%. For example, in the case of 30% compression set, recovery is 92.5%.
Note B:
Where two values are shown, the first represents max. operating temp. for conformance to
MIL-DTL-83528 (which requires Group A life testing at 1.25 times max. operating temp.) and the sec-
ond value represents the practical limit for ex posure up to 1000 hrs. (compressed between flanges
7-10%). Single values conform to both definitions.
Note C:
Copies of CEPS-0002, CHO-TP08 and CHO-TP09 are available from Chomerics. Contact Ap-
plications Engineering.
Note D:
Heat aging condition: 100°C for 48 hrs.
Note E:
Heat aging condition: 150°C for 48 hrs.
Note F:
It may not be inferred that the same level of shielding effectiveness provided by a gasket ma-
terial tested in the fixture per MIL-DTL-83528 Para. 4.5.12 would be provided in an actual equipment
flange, since many mechanical factors of the flange design (tolerances, stiffness, fastener location
and size, etc.) could lower or enhance shielding effectiveness. This procedure provides data ap-
plicable only to the test fixture design of MIL-DTL-83528, but which is useful for making comparisons
between different gasket materials. The 40 GHz test data for all materials uses TP08 test method.
Note G:
Heat aging condition: 200 °C for 48 hours
Note H:
Heat aging condition: 125 °C for 1000 hours
Table 6: Material Guidelines -
Military and Commercial
Test Procedure
(Type of Test)
CHO-SEAL
6502
CHO-SEAL
6503
CHO-SEAL
1298
CHO-SEAL
1285
CHO-SEAL
1287
CHO-SEAL
1215
Physical
Molded (M) or Extruded (E)
--
M/E
M/E
M/E
M/E
M/E
M/E
Conductive Filler
--
Ni/Al
Ni/Al
Passivated
Ag/Al
Ag/Al
Ag/Al
Ag/Cu
Elastomer Binder
--
Silicone
Fluorosilicone
Fluorosilicone
Silicone
Fluorosilicone
Silicone
Type (Ref. MIL-DTL-83528)
--
Not
Applicable
Not
Applicable
Type D
Type B
Type D
Type A
Volume Resistivity, ohm-cm, max., as
supplied without pressure
sensitive adhesive
CEPS-0002
c
(Q/C)
0.150
0.250
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
MIL-DTL-83528
(Q/C)
Not
Applicable
Not
Applicable
0.012
0.008
0.012
0.004
Hardness, Shore A
ASTM D2240 (Q/C)
68 ±10
72 ±10
70 ±7
65 ±7
70 ±7
65 ±7
Specific Gravity
ASTM D792 (Q/C)
1.85 ± 0.25
2.05 ± 0.25
2.00 ± 0.25
2.00 ± 0.25
2.00 ± 0.25
3.50 ±0.45
Tensile Strength, psi (MPa), min.
ASTM D412 (Q/C)
150 (1.03)
150 (1.03)
180 (1.24)
200 (1.38)
180 (1.24)
200 (1.38)
Elongation, % min. or % min./max.
ASTM D412 (Q/C)
100 min
50 min
60/260
100/300
60/260
100/300
Tear Strength, lb/in. (kN/m), min.
ASTM D624 (Q)
40 (7.00)
35 (6.13)
35 (6.13)
30 (5.25)
35 (6.13)
40 (7.00) / 25
(4.38)
Compression Set,
70 hrs at 100°C, % max.
(A)
ASTM D395,
Method B (Q)
30
30
30
32
30
32
Thermal
Low Temperature Flex TR10,
°C, min.
ASTM D1329 (Q)
-55
-55
-55
-65
-55
-65
Maximum Continuous Use
Temperature, °C
(B)
--
125
125
160/200
160/200
160/200
125
Thermal Conductivity,
W/m-K (Typical) 300 psi (2.07 MPa)
ASTM D5470
1.0
0.9
1.2
2.2
Not Tested
2.1
Electrical
Shielding Effectiveness, dB, min.
(F)
Method 1:
CHO-TP08
C
(Q)
Method 2:
MIL-DTL-83528
Para. 4.5.12 (Q)
Method 3:
CHO-TP09
C
(Q)
Method 2
Method 2
Method 2
Method 2
Method 2
Method 2
200 kHz (H Field)
Not Tested
Not Tested
55
60
55
70
100 MHz (E Field)
127
127
110
115
110
120
500 MHz (E Field)
115
117
100
110
100
120
2 GHz (Plane Wave)
116
116
95
105
95
120
10 GHz (Plane Wave)
127
127
90
100
90
120
40 GHz (Plane Wave)
Not Tested
75
Not Tested
75
90
Electrical Stability,
ohm-cm, max.
Heat Aging
CEPS-0002
c
(Q)
0.200
(H)
0.250
(H)
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
MIL-DTL-83528
Para. 4.5.15 (Q/C)
Not
Applicable
Not
Applicable
0.015
0.010
0.015
0.010
Resistance During Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
Not
Applicable
Not
Applicable
0.015
0.012
0.015
0.004
Resistance After Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
Not
Applicable
Not
Applicable
0.012
0.008
0.012
0.008
Post Tensile Set Volume
Resistivity
MIL-DTL-83528
Para. 4.5.9 (Q/C)
Not
Applicable
Not
Applicable
0.015
0.015
0.015
0.008
Regulatory
EMP Survivability,
kA per in. perimeter
MIL-DTL-83528
Para. 4.5.16 (Q)
>0.9
>0.9
>0.9
>0.9
>0.9
>0.9
RoHS Compliant
--
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
UL 94 Flammability Rating
UL 94
Not Tested
Not Tested
Not Tested
Not Tested
Not Tested
Not Tested
Fluorocarbon/
Fluorosilicone
Corrosion Resistant on Aluminum
Silicone
Fluorosilicone
EPDM
Elastomer Binder Legend
Elastomer Filler Legend
continued on next page...
Chomerics
8
Note A:
Compression set is expressed as a percentage of deflection per ASTM D395 Method B, at
25% deflection. To determine percent recovery, subtract 0.25 of the stated compression set value
from 100%. For example, in the case of 30% compression set, recovery is 92.5%.
Note B:
Where two values are shown, the first represents max. operating temp. for conformance to
MIL-DTL-83528 (which requires Group A life testing at 1.25 times max. operating temp.) and the sec-
ond value represents the practical limit for ex posure up to 1000 hrs. (compressed between flanges
7-10%). Single values conform to both definitions.
Note C:
Copies of CEPS-0002, CHO-TP08 and CHO-TP09 are available from Chomerics. Contact
Applications Engineering.
Note D:
Heat aging condition: 100°C for 48 hrs.
Note E:
Heat aging condition: 150°C for 48 hrs.
Note F:
It may not be inferred that the same level of shielding effectiveness provided by a gasket
material tested in the fixture per MIL-DTL-83528 Para. 4.5.12 would be provided in an actual equip-
ment flange, since many mechanical factors of the flange design (tolerances, stiffness, fastener
location and size, etc.) could lower or enhance shielding effectiveness. This procedure provides
data applicable only to the test fixture design of MIL-DTL-83528, but which is useful for making
comparisons between different gasket materials. The 40 GHz test data for all materials uses TP08
test method.
Note G:
Heat aging condition: 200 °C for 48 hours
Note H:
Heat aging condition: 125 °C for 1000 hours
continued...Table 6: Material Guidelines -
Military and Commercial -
continued
Test Procedure
(Type of Test)
CHO-SEAL
1217
CHO-SEAL
S6305
CHO-SEAL
6370
CHO-SEAL
6371
CHO-SEAL
6308
Physical
Molded (M) or Extruded (E)
--
M/E
M/E
E
M
E
Conductive Filler
--
Ag/Cu
Ni/C
Ni/C
Ni/C
Ni/C
Elastomer Binder
--
Fluorosilicone
Silicone
Silicone
Silicone
Silicone
Type (Ref. MIL-DTL-83528)
--
Type C
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Volume Resistivity, ohm-cm, max., as
supplied without pressure
sensitive adhesive
CEPS-0002
c
(Q/C)
Not
Applicable
0.100
0.100
0.100
0.100
MIL-DTL-83528
(Q/C)
0.010
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Hardness, Shore A
ASTM D2240 (Q/C)
75 ±7
65 ±10
60 ±10
65 ±10
65 ±10
Specific Gravity
ASTM D792 (Q/C)
4.00 ± 0.50
2.00 ± 0.25
2.10 ± 0.25
2.00 ± 0.25
2.00 ± 0.25
Tensile Strength, psi (MPa), min.
ASTM D412 (Q/C)
180 (1.24)
200 (1.38)
150 (1.03)
150 (1.03)
200 (1.38)
Elongation, % min. or % min./max.
ASTM D412 (Q/C)
100/300
100
100
100
75
Tear Strength, lb/in. (kN/m), min.
ASTM D624 (Q)
35 (6.13)
50 (8.75)
35 (6.13)
Not Tested
40 (7.00)
Compression Set,
70 hrs at 100°C, % max.
(A)
ASTM D395,
Method B (Q)
35
30
40
40
30
Thermal
Low Temperature Flex TR10,
°C, min.
ASTM D1329 (Q)
-55
-45
-45
-40
-60
Maximum Continuous Use
Temperature, °C
(B)
--
125
150
150
150
150
Thermal Conductivity,
W/m-K (Typical) 300 psi (2.07 MPa)
ASTM D5470
Not Tested
0.8
0.9
1.1
Not Tested
Electrical
Shielding Effectiveness, dB, min.
(F)
Method 1:
CHO-TP08
C
(Q)
Method 2:
MIL-DTL-83528
Para. 4.5.12 (Q)
Method 3:
CHO-TP09
C
(Q)
Method 2
Method 1
Method 1
Method 1
Method 1
200 kHz (H Field)
70
Not Tested
Not Tested
Not Tested
Not Tested
100 MHz (E Field)
120
100
100
100
100
500 MHz (E Field)
120
100
100
100
100
2 GHz (Plane Wave)
115
100
95
80
100
10 GHz (Plane Wave)
110
100
95
80
100
40 GHz (Plane Wave)
Not Tested
75
Not Tested
Not Tested
Not Tested
Electrical Stability,
ohm-cm, max.
Heat Aging
CEPS-0002
c
(Q)
Not
Applicable
0.250
e
0.250
(e)
0.250
(e)
0.250
e
MIL-DTL-83528
Para. 4.5.15 (Q/C)
0.015
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Resistance During Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
0.010
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Resistance After Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
0.015
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Post Tensile Set Volume
Resistivity
MIL-DTL-83528
Para. 4.5.9 (Q/C)
0.015
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Regulatory
EMP Survivability,
kA per in. perimeter
MIL-DTL-83528
Para. 4.5.16 (Q)
>0.9
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
RoHS Compliant
--
Ye s
Ye s
Ye s
Ye s
Ye s
UL 94 Flammability Rating
UL 94
Not Tested
V-0
V-0
V-0
Not Tested
Silicone
EPDM
Elastomer Binder Legend
Fluorosilicone
Fluorocarbon/
Fluorosilicone
Corrosion Resistant on Aluminum
Elastomer Filler Legend
continued on next page...
9
ENGINEERING
YOUR
SUCCESS.
Note A:
Compression set is expressed as a percentage of deflection per ASTM D395 Method B, at
25% deflection. To determine percent recovery, subtract 0.25 of the stated compression set value
from 100%. For example, in the case of 30% compression set, recovery is 92.5%.
Note B:
Where two values are shown, the first represents max. operating temp. for conformance
to MIL-DTL-83528 (which requires Group A life testing at 1.25 times max. operating temp.)
and the second value represents the practical limit for ex posure up to 1000 hrs. (compressed
between flanges 7-10%). Single values conform to both definitions.
Note C:
Copies of CEPS-0002, CHO-TP08 and CHO-TP09 are available from Chomerics. Contact
Applications Engineering.
Note D:
Heat aging condition: 100°C for 48 hrs.
Note E:
Heat aging condition: 150°C for 48 hrs.
Note F:
It may not be inferred that the same level of shielding effectiveness provided by a gasket
material tested in the fixture per MIL-DTL-83528 Para. 4.5.12 would be provided in an actual
equipment flange, since many mechanical factors of the flange design (tolerances, stiffness,
fastener location and size, etc.) could lower or enhance shielding effectiveness. This procedure
provides data applicable only to the test fixture design of MIL-DTL-83528, but which is useful for
making comparisons between different gasket materials. The 40 GHz test data for all materials
uses TP08 test method.
Note G:
Heat aging condition: 200 °C for 48 hours
Note H:
Heat aging condition: 125 °C for 1000 hours
Note J:
Molded version of 1350 meets Mil-DTL-83528 type M specifications.
Extruded version of 1350 meets Mil-DTL-83528 type M specifications except
elongation (60/260).
continued...Table 6: Material Guidelines -
Military and Commercial -
continued
Test Procedure
(Type of Test)
CHO-SEAL
6330
CHO-SEAL
L6303
CHO-SEAL
1350
CHO-SEAL
1310
CHO-SEAL
1273
Physical
Molded (M) or Extruded (E)
--
M
M/E
M/E
(J)
M
M/E
Conductive Filler
--
Ni/C
Ni/C
Ag/Glass
Ag/Glass
Ag/Cu
Elastomer Binder
--
Silicone
Fluorosilicone
Silicone
Silicone
Silicone
Type (Ref. MIL-DTL-83528)
--
Not
Applicable
Not
Applicable
Type M
(J)
Not
Applicable
Not
Applicable
Volume Resistivity, ohm-cm, max., as
supplied without pressure
sensitive adhesive
CEPS-0002
c
(Q/C)
0.250
0.100
Not
Applicable
0.010
0.004
MIL-DTL-83528
(Q/C)
Not
Applicable
Not
Applicable
0.006
Not
Applicable
Not
Applicable
Hardness, Shore A
ASTM D2240 (Q/C)
40 ±7
65 ±10
65 ±7
70 ±10
65 ±8
Specific Gravity
ASTM D792 (Q/C)
1.70 ± 0.25
2.20 ± 0.25
1.90 ± 0.25
1.80 ± 0.25
3.70 ± 0.25
Tensile Strength, psi (MPa), min.
ASTM D412 (Q/C)
120 (0.83)
150 (1.03)
200 (1.38)
200 (1.38)
175 (1.21)
Elongation, % min. or % min./max.
ASTM D412 (Q/C)
75
60
100/300
100
75
Tear Strength, lb/in. (kN/m), min.
ASTM D624 (Q)
Not Tested
35 (6.13)
30 (5.25)
Not Tested
Not Tested
Compression Set,
70 hrs at 100°C, % max.
(A)
ASTM D395,
Method B (Q)
25
25
30
35
32
Thermal
Low Temperature Flex TR10,
°C, min.
ASTM D1329 (Q)
-40
-45
-55
-40
-65
Maximum Continuous Use
Temperature, °C
(B)
--
150
150
160
160
125
Thermal Conductivity,
W/m-K (Typical) 300 psi (2.07 MPa)
ASTM D5470
0.6
0.8
1.2
Not Tested
Not Tested
Electrical
Shielding Effectiveness, dB, min.
(F)
Method 1:
CHO-TP08
C
(Q)
Method 2:
MIL-DTL-83528
Para. 4.5.12 (Q)
Method 3:
CHO-TP09
C
(Q)
Method 3
Method 1
Method 2
Method 1
Method 1
200 kHz (H Field)
Not Tested
Not Tested
50
Not Tested
Not Tested
100 MHz (E Field)
75
100
125
100
100
500 MHz (E Field)
75
100
114
100
100
2 GHz (Plane Wave)
70
100
116
90
100
10 GHz (Plane Wave)
70
100
124
80
100
40 GHz (Plane Wave)
Not Tested
Not Tested
Not Tested
Not Tested
Not Tested
Electrical Stability,
ohm-cm, max.
Heat Aging
CEPS-0002
c
(Q)
0.250
(e)
0.250
e
Not
Applicable
0.010
0.010
MIL-DTL-83528
Para. 4.5.15 (Q/C)
Not
Applicable
Not
Applicable
0.015
Not
Applicable
Not
Applicable
Resistance During Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
Not
Applicable
Not
Applicable
0.009
Not
Applicable
Not
Applicable
Resistance After Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
Not
Applicable
Not
Applicable
0.006
Not
Applicable
Not
Applicable
Post Tensile Set Volume
Resistivity
MIL-DTL-83528
Para. 4.5.9 (Q/C)
Not
Applicable
Not
Applicable
0.009
Not
Applicable
Not
Applicable
Regulatory
EMP Survivability,
kA per in. perimeter
MIL-DTL-83528
Para. 4.5.16 (Q)
Not
Applicable
Not
Applicable
>0.9
Not
Applicable
Not
Applicable
RoHS Compliant
--
Ye s
Ye s
Ye s
Ye s
Ye s
UL 94 Flammability Rating
UL 94
Not Tested
Not Tested
Not Tested
V-0
V-0
Silicone
EPDM
Elastomer Binder Legend
Fluorosilicone
Fluorocarbon/
Fluorosilicone
Corrosion Resistant on Aluminum
Elastomer Filler Legend
continued on next page...
Chomerics
10
* Molded only
Note A:
Compression set is expressed as a percentage of deflection per ASTM D395 Method B, at
25% deflection. To determine percent recovery, subtract 0.25 of the stated compression set value
from 100%. For example, in the case of 30% compression set, recovery is 92.5%.
Note B:
Where two values are shown, the first represents max. operating temp. for conformance
to MIL-DTL-83528 (which requires Group A life testing at 1.25 times max. operating temp.)
and the second value represents the practical limit for ex posure up to 1000 hrs. (compressed
between flanges 7-10%). Single values conform to both definitions.
Note C:
Copies of CEPS-0002, CHO-TP08 and CHO-TP09 are available from Chomerics. Contact
Applications Engineering.
Note D:
Heat aging condition: 100°C for 48 hrs.
Note E:
Heat aging condition: 150°C for 48 hrs.
Note F:
It may not be inferred that the same level of shielding effectiveness provided by a gasket
material tested in the fixture per MIL-DTL-83528 Para. 4.5.12 would be provided in an actual
equipment flange, since many mechanical factors of the flange design (tolerances, stiffness,
fastener location and size, etc.) could lower or enhance shielding effectiveness. This procedure
provides data applicable only to the test fixture design of MIL-DTL-83528, but which is useful for
making comparisons between different gasket materials. The 40 GHz test data for all materials
uses TP08 test method.
Note G:
Heat aging condition: 200 °C for 48 hours
Note H:
Heat aging condition: 125 °C for 1000 hours
continued...Table 6: Material Guidelines -
Military and Commercial -
continued
Test Procedure
(Type of Test)
CHO-SEAL
1270
CHO-SEAL
1224
CHO-SEAL
1221
CHO-SEAL
1401
CHO-SEAL
1239
Physical
Molded (M) or Extruded (E)
--
M
M
M
M/E
M
Conductive Filler
--
Ag/Cu
Ag
Ag
Ag
Ag/Cu
Elastomer Binder
--
Silicone
Silicone
Fluorosilicone
Silicone
Silicone &
Expanded Cu Foil
Type (Ref. MIL-DTL-83528)
--
Not
Applicable
Type E
Type F
Not
Applicable
Type G
Volume Resistivity, ohm-cm, max., as
supplied without pressure
sensitive adhesive
CEPS-0002
c
(Q/C)
0.050
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
MIL-DTL-83528 (Q/C)
Not
Applicable
0.002
0.002
0.010
0.007
Hardness, Shore A
ASTM D2240 (Q/C)
40 ±7
65 ±7
75 ±7
45 ±5
80 ±7
Specific Gravity
ASTM D792 (Q/C)
2.90 ± 0.25
3.50 ±0.45
4.00 ±0.50
1.60 ± 0.25
4.75 ± 0.75
Tensile Strength, psi (MPa), min.
ASTM D412 (Q/C)
80
(0.55)
300 (2.07)
250 (1.72)
200 (1.38)
600 (4.14)
Elongation, % min. or % min./max.
ASTM D412 (Q/C)
75
200/500
100/300
75
20
Tear Strength, lb/in. (kN/m), min.
ASTM D624 (Q)
Not Tested
50 (8.75)
40 (7.00)
20 (3.50)
70 (12.25)
Compression Set,
70 hrs at 100°C, % max.
(A)
ASTM D395,
Method B (Q)
30
45
60
35
Not Tested
Thermal
Low Temperature Flex TR10,
°C, min.
ASTM D1329 (Q)
-60
-65
-65
-55
Not Tested
Maximum Continuous Use
Temperature, °C
(B)
--
125
160/200
160/200
160/200
125
Thermal Conductivity,
W/m-K (Typical) 300 psi (2.07 MPa)
ASTM D5470
0.8
2.8
Not Tested
0.9
1.9
Electrical
Shielding Effectiveness, dB, min.
(F)
Method 1:
CHO-TP08
C
(Q)
Method 2:
MIL-DTL-83528
Para. 4.5.12 (Q)
Method 3:
CHO-TP09
C
(Q)
Method 3
Method 2
Method 2
Method 2
Method 2
200 kHz (H Field)
Not Tested
70
70
60
70
100 MHz (E Field)
80
120
120
100
110
500 MHz (E Field)
80
120
120
100
110
2 GHz (Plane Wave)
70
120
120
90
110
10 GHz (Plane Wave)
70
120
120
80
110
40 GHz (Plane Wave)
Not Tested
Not Tested
Not Tested
Not Tested
Not Tested
Electrical Stability,
ohm-cm, max.
Heat Aging
CEPS-0002
c
(Q)
0.100
e
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
MIL-DTL-83528
Para. 4.5.15 (Q/C)
Not
Applicable
0.010
0.010
0.015
0.010
Resistance During Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
Not
Applicable
0.010
0.010
0.015
0.007
Resistance After Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
Not
Applicable
0.002
0.002
0.010
Not
Applicable
Post Tensile Set Volume
Resistivity
MIL-DTL-83528
Para. 4.5.9 (Q/C)
Not
Applicable
0.010
0.010
0.020
Not
Applicable
Regulatory
EMP Survivability,
kA per in. perimeter
MIL-DTL-83528
Para. 4.5.16 (Q)
Not
Applicable
>0.9
>0.9
>0.9
>0.9
RoHS Compliant
--
Ye s
Ye s
Ye s
Ye s
Ye s
UL 94 Flammability Rating
UL 94
Not Tested
Not Tested
Not Tested
Not Tested
Not Tested
Fluorocarbon/
Fluorosilicone
Corrosion Resistant on Aluminum
Silicone
Fluorosilicone
EPDM
Elastomer Binder Legend
Elastomer Filler Legend
continued on next page...
11
ENGINEERING
YOUR
SUCCESS.
Note A:
Compression set is expressed as a percentage of deflection per ASTM D395 Method B, at
25% deflection. To determine percent recovery, subtract 0.25 of the stated compression set value
from 100%. For example, in the case of 30% compression set, recovery is 92.5%.
Note B:
Where two values are shown, the first represents max. operating temp. for conformance
to MIL-DTL-83528 (which requires Group A life testing at 1.25 times max. operating temp.)
and the second value represents the practical limit for ex posure up to 1000 hrs. (compressed
between flanges 7-10%). Single values conform to both definitions.
Note C:
Copies of CEPS-0002, CHO-TP08 and CHO-TP09 are available from Chomerics. Contact
Applications Engineering.
Note D:
Heat aging condition: 100°C for 48 hrs.
Note E:
Heat aging condition: 150°C for 48 hrs.
Note F:
It may not be inferred that the same level of shielding effectiveness provided by a gasket
material tested in the fixture per MIL-DTL-83528 Para. 4.5.12 would be provided in an actual
equipment flange, since many mechanical factors of the flange design (tolerances, stiffness,
fastener location and size, etc.) could lower or enhance shielding effectiveness. This procedure
provides data applicable only to the test fixture design of MIL-DTL-83528, but which is useful for
making comparisons between different gasket materials. The 40 GHz test data for all materials
uses TP08 test method.
Note G:
Heat aging condition: 200 °C for 48 hours
Note H:
Heat aging condition: 125 °C for 1000 hours
continued...Table 6: Material Guidelines -
Military and Commercial -
continued
Test Procedure
(Type of Test)
CHO-SEAL
1212
CHO-SEAL
6435
CHO-SEAL
6307
CHO-SEAL
6452
CHO-SEAL
6460
Physical
Molded (M) or Extruded (E)
--
M
M
M
E
M
Conductive Filler
--
Ag/Cu
Ag/Ni
Ni/C
Ni/C
Ni/Al+Ni/C
Elastomer Binder
--
Silicone
EPDM
EPDM
EPDM
EPDM
Type (Ref. MIL-DTL-83528)
--
Type K
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Volume Resistivity, ohm-cm, max., as
supplied without pressure
sensitive adhesive
CEPS-0002
c
(Q/C)
Not
Applicable
0.006
5.000
Not
Applicable
Not
Applicable
MIL-DTL-83528 (Q/C)
0.005
Not
Applicable
Not
Applicable
0.500
0.600
Hardness, Shore A
ASTM D2240 (Q/C)
85 ±7
80 ±7
75 ±7
70 ±10
65 ±7
Specific Gravity
ASTM D792 (Q/C)
3.50 ± 0.45
3.70 ± 0.25
1.90 ± 0.25
1.95 ± 0.25
1.80 ± 0.25
Tensile Strength, psi (MPa), min.
ASTM D412 (Q/C)
400 (2.76)
200 (1.38)
200 (1.38)
200 (1.38)
200 (1.38)
Elongation, % min. or % min./max.
ASTM D412 (Q/C)
100/300
200
75
200
200
Tear Strength, lb/in. (kN/m), min.
ASTM D624 (Q)
40 (7.00)
75 (13.13)
60 (10.51)
55 (9.63)
50 (8.75)
Compression Set,
70 hrs at 100°C, % max.
(A)
ASTM D395,
Method B (Q)
35
40
40
35
30
Thermal
Low Temperature Flex TR10,
°C, min.
ASTM D1329 (Q)
-45
-40
-45
-50
-50
Maximum Continuous Use
Temperature, °C
(B)
--
125
100
100
100
100
Thermal Conductivity,
W/m-K (Typical) 300 psi (2.07 MPa)
ASTM D5470
1.8
1.8
0.6
Not Tested
Not Tested
Electrical
Shielding Effectiveness, dB, min.
(F)
Method 1:
CHO-TP08
C
(Q)
Method 2:
MIL-DTL-83528
Para. 4.5.12 (Q)
Method 3:
CHO-TP09
C
(Q)
Method 2
Method 2
Method 2
Method 3
Method 2
200 kHz (H Field)
70
Not Tested
Not Tested
Not Tested
Not Tested
100 MHz (E Field)
120
105
95
75
110
500 MHz (E Field)
120
100
90
100
120
2 GHz (Plane Wave)
120
85
85
105
105
10 GHz (Plane Wave)
120
85
85
85
100
40 GHz (Plane Wave)
Not Tested
Not Tested
Not Tested
Not Tested
Not Tested
Electrical Stability,
ohm-cm, max.
Heat Aging
CEPS-0002
c
(Q)
Not
Applicable
0.0125
(d)
10
d
Not
Applicable
Not
Applicable
MIL-DTL-83528
Para. 4.5.15 (Q/C)
0.010
Not
Applicable
Not
Applicable
0.350
2.500
D
Resistance During Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
0.010
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Resistance After Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
0.005
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Post Tensile Set Volume
Resistivity
MIL-DTL-83528
Para. 4.5.9 (Q/C)
0.010
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Regulatory
EMP Survivability,
kA per in. perimeter
MIL-DTL-83528
Para. 4.5.16 (Q)
>0.9
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
RoHS Compliant
--
Ye s
Ye s
Ye s
Ye s
Ye s
UL 94 Flammability Rating
UL 94
Not Tested
Not Tested
Not Tested
Not Tested
Not Tested
Fluorocarbon/
Fluorosilicone
Corrosion Resistant on Aluminum
Silicone
Fluorosilicone
EPDM
Elastomer Binder Legend
Elastomer Filler Legend
continued on next page...
Chomerics
12
continued...Table 7: Material Guidelines -
Specialty Products -
continued
Test Procedure
(Type of Test)
CHO-SEAL
V6433
CHO-SEAL
S6600
Physical
Molded (M) or Extruded (E)
--
M
M
Conductive Filler
--
Ag/Ni
Carbon
Elastomer Binder
--
Fluorocarbon/ Fluorosilicone
Silicone
Type (Ref. MIL-DTL-83528)
--
Not
Applicable
Not
Applicable
Volume Resistivity, ohm-cm, max., as sup
-
plied without pressure
sensitive adhesive
CEPS-0002
c
(Q/C)
Not
Applicable
7
MIL-DTL-83528 (Q/C)
0.006
Not
Applicable
Hardness, Shore A
ASTM D2240 (Q/C)
85 ±7
75 ±7
Specific Gravity
ASTM D792 (Q/C)
4.80 ± 0.25
1.20 ±0.25
Tensile Strength, psi (MPa), min.
ASTM D412 (Q/C)
400 (2.76)
650 (4.48)
Elongation, % min. or % min./max.
ASTM D412 (Q/C)
50
70
Tear Strength, lb/in. (kN/m), min.
ASTM D624 (Q)
70 (12.25)
Not Tested
Compression Set,
70 hrs at 100°C, % max.
(A)
ASTM D395,
Method B (Q)
45
45
Thermal
Low Temperature Flex TR10,
°C, min.
ASTM D1329 (Q)
-25
-45
Maximum Continuous Use
Temperature, °C
(B)
--
200
200
Thermal Conductivity,
W/m-K (Typical) 300 psi (2.07 MPa)
ASTM D5470
2.1
0.6
Electrical
Shielding Effectiveness, dB, min.
(F)
Method 1:
CHO-TP08
C
(Q)
Method 2:
MIL-DTL-83528
Para. 4.5.12 (Q)
Method 3:
CHO-TP09
C
(Q)
Method 2
Method 1
200 kHz (H Field)
Not Tested
Not Tested
100 MHz (E Field)
105
80
500 MHz (E Field)
100
80
2 GHz (Plane Wave)
90
60
10 GHz (Plane Wave)
90
50
40 GHz (Plane Wave)
Not Tested
Not Tested
Electrical Stability,
ohm-cm, max.
Heat Aging
CEPS-0002
c
(Q)
0.008
g
7
(E)
ohm-cm, max.
Not
Applicable
Not
Applicable
Resistance During Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
Not
Applicable
Not
Applicable
Resistance After Vibration
MIL-DTL-83528
Para. 4.5.13 (Q)
Not
Applicable
Not
Applicable
Post Tensile Set Volume
Resistivity
MIL-DTL-83528
Para. 4.5.9 (Q/C)
Not
Applicable
Not
Applicable
Regulatory
EMP Survivability,
kA per in. perimeter
MIL-DTL-83528
Para. 4.5.16 (Q)
Not
Applicable
Not
Applicable
RoHS Compliant
--
Ye s
Ye s
UL 94 Flammability Rating
UL 94
Not tested
Not Tested
Fluorocarbon/
Fluorosilicone
Corrosion Resistant on Aluminum
Silicone
Fluorosilicone
EPDM
Elastomer Binder Legend
Elastomer Filler Legend
Note A:
Compression set is expressed as a percentage of deflection per ASTM D395 Method B,
at 25% deflection. To determine percent recovery, subtract 0.25 of the stated compression set
value from 100%. For example, in the case of 30% compression set, recovery is 92.5%.
Note B:
Where two values are shown, the first represents max. operating temp. for confor-
mance to MIL-DTL-83528 (which requires Group A life testing at 1.25 times max. operating
temp.) and the second value represents the practical limit for ex posure up to 1000 hrs. (com-
pressed between flanges 7-10%). Single values conform to both definitions.
Note C:
Copies of CEPS-0002, CHO-TP08 and CHO-TP09 are available from Chomerics. Contact
Applications Engineering.
Note D:
Heat aging condition: 100°C for 48 hrs.
Note E:
Heat aging condition: 150°C for 48 hrs.
Note F:
It may not be inferred that the same level of shielding effectiveness provided by a
gasket material tested in the fixture per MIL-DTL-83528 Para. 4.5.12 would be provided in
an actual equipment flange, since many mechanical factors of the flange design (tolerances,
stiffness, fastener location and size, etc.) could lower or enhance shielding effectiveness. This
procedure provides data applicable only to the test fixture design of MIL-DTL-83528, but which
is useful for making comparisons between different gasket materials. The 40 GHz test data for
all materials uses TP08 test method.
Note G:
Heat aging condition: 200 °C for 48 hours
Note H:
Heat aging condition: 125 °C for 1000 hours
Conductive Elastomer EMI Gaskets Molded and Extruded Materials Selection Guide
选型目录:
EMI Materials
Gasket
Elastomer Binder & Elastomer Filler

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