CHO-SEAL 1287 – 0.81mm | Parker ChomericsCustom pads and gaskets priced instantly and made to order within 24 hours!

CHO-SEAL 1287 – 0.81mm | Parker Chomerics

Conductive Elastomer | Silver-Aluminium Filled Fluorosilicone

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  • Reduces electromagnetic interference
  • Maintains sealing performance
  • Suitable for high-reliability applications
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SKU: 93280 Categories: , , , Brand:

Description

Parker Chomerics CHO-SEAL 1287 is a silver-aluminium filled conductive elastomer gasket formulated with a fluorosilicone binder for combined electromagnetic interference (EMI) shielding and environmental sealing. The fluorosilicone base provides chemical resistance and dimensional stability while the conductive filler attenuates RF and microwave energy, making it suitable for applications requiring both electrical performance and environmental durability.

CHO-SEAL 1287 ‘s balanced combination of shielding effectiveness, corrosion resistance, and broad temperature capability supports its use in aerospace, defence, industrial, and high-reliability electronics where exposure to fuels, solvents, and harsh conditions may occur.

MPN: 40-20-1020-1287

Benefits

  • Reduces electromagnetic interference
  • Maintains sealing performance
  • Suitable for high-reliability applications

Features

Recommended Uses

  • Avionics & Defence: Avionics enclosure, Military electronic housings, Radar and communication sysystems
  • Telecommunications & Network: Shielded cabinets and rack components, Base stations and RF modules
  • Industrial Electronics: Control enclosures and automation systems, Power electronics and drive modules
  • Automotive & Transportation: Electronic control modules, EMI management in electric and hybrid systems
Physical
Property Test Procedure<br>(Type of Test) CHO-SEAL 1287
Conductive Filler – Ag/Al
Elastomer Binder – Fluorosilicone
Type (Ref. MIL-DTL-83528) – Type D
Volume Resistivity, ohm-cm, max.,<br>as supplied without pressure<br>sensitive adhesive <p style=”border-bottom: 1px solid black”>CEPS-0002<sup>(c)</sup> (Q/C)</p><p>MIL-DTL-83528 (Q/C)</p> <p style=”border-bottom: 1px solid black”>Not Applicable</p><p>0.012</p>
Hardness, Shore A ASTM D2240 (Q/C) 70 ± 7
Specific Gravity ASTM D792 (Q/C) 2.00 ± 0.25
Tensile Strength, psi (MPa), min. ASTM D412 (Q/C) 180 (1.24)
Elongation, & min. or % min./max. ASTM D412 (Q/C) 60/260
Tear Strength, lb/in. (kN/m), min. ASTM D624 (Q) 35 (6.23)
Compression Set,<br> 70 hrs at 100°C, % max.<sup>(A)</sup> ASTM D395,<br>Method B (Q) 30
Thermal
Property Test Procedure<br>(Type of Test) CHO-SEAL 1287
Low Temperature Flex TR10, <br>°C, min. ASTM D1329 (Q) -55
Maximum Continuous Use<br>Temperature, °C<sup>(B)</sup> – 160/200
Thermal Conductivity,<br>W/m-K (Typical) 300 psi (2.07 MPa) ASTM D5470 Not Tested
Electrical
Property Test Procedure<br>(Type of Test) CHO-SEAL 1287
<strong>Shielding Effectiveness, dB, min.<sup>(F)</sup></strong><br>- 200 kHz (H Field)<br>- 100 MHz (E Field)<br>- 500 MHz (E Field)<br>- 2 GHz (Plane Wave)<br>- 10 GHz (Plane Wave)<br>- 40 GHz (Plane Wave) <br><br>Method 2:<br>MIL-DTL-83528<br>Para. 4.5.12 (Q) <strong>Method 2:</strong><br>55<br>110<br>100<br>95<br>90<br>75
Electrical:

Electrical Stability, ohm-cm, max.

Property Test Procedure<br>(Type of Test) CHO-SEAL 1287
Heat Aging <p style=”border-bottom: 1px solid black”>CEPS-0002<sup>(C)</sup> (Q)</p><p>MIL-DTL-83528<br>Para. 4.5.15 (Q/C)</p> <p style=”border-bottom: 1px solid black”>Not Applicable<sup>(H)</sup></p><p>0.015</p>
Resistance During Vibration MIL-DTL-83528<br>Para. 4.5.13 (Q) 0.015
Resistance After Vibration MIL-DTL-83528<br>Para. 4.5.13 (Q) 0.012
Post Tensile Set Volume<br>Resistivity MIL-DTL-83528<br>Para. 4.5.9 (Q/C) 0.015
Regulatory
Property Test Procedure<br>(Type of Test) CHO-SEAL 1287
EMP Survivability,<br>kA per in. perimeter MIL-DTL-83528<br>Para. 4.5.16 (Q) >0.9
RoHS Compliant – Yes
UL 94 Flammability Rating UL 94 Not Tested

CHO-SEAL 1287 Datasheet





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