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Parker Chomerics SOFT-SHIELD® 4850 is a true multi-planar, Z-axis electrically conductive foam for indoor applications. It is based on the unique integration of electrically conductive silver-plated nylon fibers into a low-density urethane foam, providing for a performance-driven, cost effective EMI shielding solution. Through the optimization of conductive fiber construction, loading and dispersion within the foam matrix, SOFT-SHIELD 4850 provides excellent Z-axis electrical conductivity with extremely short ground paths. SOFT-SHIELD 4850 has a UL 94 V-0 flammability rating and is available in configurations such as bulk rolls, cut sheets or custom die cut shapes. A uniform silver-plated copper particle filled, electrically conductive acrylic pressure sensitive adhesive (PSA) is available on one side for ease of assembly.
A1 = Adhesive on One Side
Typical Properties | SOFT-SHIELD 4850 | Test Method |
---|---|---|
Shielding Effectiveness – 20 MHz to 10 GHz, dB | 95 | CHO-TM-TP08 |
Compression-Deflection – 3 mm thick sample, psi (kPa) | 25% - 2.5 (17.2) 50% - 4.3 (29.6) | ASTM C165 (Modified) |
Through-Resistance | See DataSheet (Figure 1) | ASTM D991 |
Gasket Compression Set, % | <15 | ASTM D3574 |
Tensile Strength – 3 mm thick sample, psi (MPa) | 306 (2.1) | ASTM D412 (Modified) |
Electrically Conductive Acrylic PSA Peel Strength, oz/in | 15 | ASTM D1000 (Modified to 90o peel) |
Recommended % Deflection Range, % | 15 - 50 | - |
Flammability (See UL File Number E140244) | V-0 | UL 94 |
NASA Outgassing, % TML (% CVCM) | 7.20 (4.35) | ASTM E595 |
Operating Temperature °F (°C) | -40 to 158 (-40 to 70) | - |
Recommended Storage Conditions @ 50% Relative Humidity °F (°C) | 21 ± 10 (70 ± 20) | - |
Shelf Life with PSA, months from date of shipment | 24* | - |
Shelf Life (no adhesive) | Indefinite | - |
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Scheduled shipments give you flexibility with your deliveries. Instead of choosing just one delivery date, you can choose as many shipment quantities and dates as you like.
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Alternatively call us on 01908 222211 for all the information you need regarding gaining access to Scheduled Shipments.
Shipment Order No. | Shipment Date | Shipment Quantity |
---|---|---|
#56534 | 1/1/2025 | 1000 |
#56534 | 15/2/2025 | 1000 |
#56534 | 12/3/2025 | 1000 |
In the above example the customer has ordered 3000 parts, but the customer wants 3 seperate shipments of 1000 parts. We will then ship in accordance with your required deliveries.