Looking for CHO-SEAL® EMI gasket offsets*? SSP makes EMI silicones and fabricates EMI gaskets, including M83528 part numbers We are not a Parker Chomerics distributor.
Specialty Silicone Products (SSP) makes EMI shielding elastomers that offer alternatives to Parker Chomerics CHO-SEAL products. We invite you to compare our EMI silicones to products you may be buying elsewhere.
Why buy EMI shielding silicones from SSP? For starters, we offer low minimum order quantities (MOQs), have short lead times, and sell to you directly.
Plus, many of SSP’s offsets to CHO-SEAL® products meet MIL-DTL-83528 (M83528) requirements, a U.S. military specification for electrically conductive elastomeric gaskets that provide specific levels of EMI shielding. SSP can even fabricate EMI gaskets in M83528 slash sizes, including EMI O-rings.
Importantly, the MIL-DTL-83528 conductive silicones that SSP manufactures and fabricates are part of the M83528 Qualified Products List (QPL) from the Defense Logistics Agency, which is part of the U.S. Department of Defense. These M83528 QPL certified materials are proudly Made in the USA.
CHO-SEAL EMI Shielding vs. SSP Offsets
CHO-SEAL Product | SSP Material | Short Description | MIL-DTL-83528 |
CHO-SEAL 1215 | SSP2569-65 | 65-durometer Silicone Silver-copper | Type A |
CHO-SEAL 1285 | SSP2368-65 | 65-durometer Silicone Silver-aluminum | Type B |
CHO-SEAL 1217 | SSP2573-75 | 75-durometer Fluorosilicone Silver copper | Type C |
CHO-SEAL 1287 | SSP2486-70 | 70-durometer Silicone Silver-aluminum | Type D |
CHO-SEAL 1298 | SSP2486-70 | 70-durometer Silicone Silver-aluminum | Type D |
CHO-SEAL 1212 | SSP2571-85 | 85-durometer Silicone Silver-copper | Type K |
CHO-SEAL 6502 | SSP2529 | 68-durometer Silicone Nickel-aluminum | N/A |
CHO-SEAL 6305 | SSP502-65 | 65-durometer Fluorosilicone Silver-aluminum | N/A |
SSP Offsets vs. CHO-SEAL EMI Shielding
Product Number | Product Description | Max V.R. (ohm/cm) | Available Durometers Shore A | MIL-DTL-8352 Type Reference | Offsets |
SSP502 Series | Electrically conductive filled with nickel-coated graphite | Molded Sheets .1 – 2.5” *Varies with durometer | 30 to 80 | N/A | CHO-SEAL S6305, 6330, 6370, 6371, 6372, 6308, L6303, 802, and 812 series |
SSP2368 | Electrically conductive silicone filled with silver plated aluminum | .008 | 65 | Type B Full QPL Certification with DLA | CHO-SEAL 1285, 805 Series |
SSP2486 | Electrically conductive fluorosilicone filled with silver-plated aluminum | . 012 | 70 | Type D | CHO-SEAL 1287 and 1298, 815 Series |
SSP2569-65 SSP2571-85 SSP2573-75 | Electrically conductive silicone filled with silver-plated copper | .004 | 65 to 85 | Type A, C & K Full QPL Certification with DLA | CHO-SEAL 1273, 1270, 1217, 1215, 806 Series |
SSP2529 Galvanic Corrosion Resistant | Nickel-aluminum in silicone | .15 | 68 | N/A | CHO-SEAL 6502 |
SSP2551 Galvanic Corrosion Resistant | Nickel-aluminum in fluorosilicone | .25 | 70 | N/A | CHO-SEAL 6503 |
About SSP’s CHO-SEAL EMI Gasket Alternatives
Specialty Silicone Products Inc. (SSP) supplies a full line of electrically-conductive silicone elastomers that provide proven levels of EMI shielding. These conductive silicones are designed to balance cost competitiveness with electrical conductivity and include uncured moldable compounds, compression molded sheet stock, and continuous rolls that arrive ready for fabrication.
SSP also supplies fabricated products such as EMI O-rings, EMI extrusions, and custom molded EMI gaskets. For help finding what you need, contact us.
What are CHO-SEAL Products?
CHO-SEAL products are electrically conductive elastomer gaskets developed by Parker Chomerics. They provide EMI shielding and are available in various form factors. Sometimes, CHO-SEAL is written as CHOSEAL or CHO SEAL; however, neither of these spellings are the actual brand name.
*CHO-SEAL® is a registered trademark of Parker Chomerics. SSP not a Parker Chomerics distributor and we make no representations about CHO-SEAL products other than the user’s ability to substitute SSP materials for them.
