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Parker Chomerics CHO-SEAL 1298 EMI Shielding Material
| Category | Polymer , Thermoset , Fluoropolymer, TS , Rubber or Thermoset Elastomer (TSE) |
| Manufacturer | Parker Chomerics |
| Trade Name | CHO-SEAL |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Parker Chomerics CHO-SEAL 1298 EMI Shielding Material.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Corrosion Resistant EMI Shielding Gasket. Through the use of new proprietary particle painting and elastomer compounding technology, CHO-SEAL® 1298 shielding elastomer offers a six-fold increase in corrosion resistance over products previously available. In fact, a virtually corrosion-proof EMI flange system is obtained when CHO-SEAL 1298 gaskets are used in conjunction with Chomerics CHO-SHIELD® 2000 series corrosion resistant coatings on aluminum flanges.Information provided by Chomerics
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Specific Gravity | 1.75 - 2.25 g/cc | 1.75 - 2.25 g/cc | ASTM D792 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Shore A | 63 - 77 | 63 - 77 | ASTM D2240 |
| Tensile Strength at Break | >= 1.24 MPa | >= 180 psi | ASTM D412 |
| Elongation at Break | 60 - 260 % | 60 - 260 % | ASTM D412 |
| Tear Strength | 6.13 kN/m | 35.0 pli | ASTM D624 |
| Compression Set | <= 30 % @Temperature 100 °C, Time 252000 sec |
<= 30 % @Temperature 212 °F, Time 70.0 hour |
ASTM D395 Method B |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| Thermal Conductivity | 1.20 W/m-K @Pressure 2.07 MPa |
8.33 BTU-in/hr-ft²-°F @Pressure 300 psi |
ASTM D5470 |
| Maximum Service Temperature, Air | 200 °C | 392 °F | |
| Minimum Service Temperature, Air | -55.0 °C | -67.0 °F | Flex TR10; ASTM D1329 |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Volume Resistivity | <= 0.012 ohm-cm | <= 0.012 ohm-cm | MIL-DTL-83528 |
| <= 0.015 ohm-cm | <= 0.015 ohm-cm | Life Test/Post Tensile; MIL-DTL-83528 Para.4.6.12 | |
| Shielding Effectiveness | >= 55 dB @Frequency 200000 Hz |
>= 55 dB @Frequency 200000 Hz |
H Field; MIL-DTL-83528 Para.4.6.12 |
| >= 75 dB @Frequency 4.00e+10 Hz |
>= 75 dB @Frequency 4.00e+10 Hz |
Plane Wave; MIL-DTL-83528 Para.4.6.12 | |
| >= 90 dB @Frequency 1.00e+10 Hz |
>= 90 dB @Frequency 1.00e+10 Hz |
Plane Wave; MIL-DTL-83528 Para.4.6.12 | |
| >= 95 dB @Frequency 2.00e+9 Hz |
>= 95 dB @Frequency 2.00e+9 Hz |
Plane Wave; MIL-DTL-83528 Para.4.6.12 | |
| >= 100 dB @Frequency 5.00e+8 Hz |
>= 100 dB @Frequency 5.00e+8 Hz |
E Field; MIL-DTL-83528 Para.4.6.12 | |
| >= 110 dB @Frequency 1.00e+8 Hz |
>= 110 dB @Frequency 1.00e+8 Hz |
E Field; MIL-DTL-83528 Para.4.6.12 |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Binder | Fluorosilicone | |
| EMP Survivability | >0.9 kA / in | MIL-DTL-83528 Para.4.6.16 |
| Filler | Passivated Ag/Al | |
| Gravimetric Weight Loss, mg | 3.5 | |
| Heat Aging | <0.015 ohm-cm | MIL-DTL-83528 Para.4.6.15 |
| Type | D | MIL-DTL-83528 |
| Vibration Resistance, After | <0.012 ohm-cm | MIL-DTL-83528 Para.4.6.13 |
| Vibration Resistance, During, ohm-cm max | <0.015 ohm-cm | MIL-DTL-83528 Para.4.6.13 |
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