Precision EMI Shielding and Grounding in a Flexible Format
When designing advanced electronic devices, electromagnetic interference (EMI) and radio frequency interference (RFI) shielding are critical for performance and reliability. Traditional solutions like screws, clips, or mechanical fasteners can add bulk, increase assembly time, and risk creating air gaps that compromise shielding effectiveness.
The 3M™ Electrically Conductive Cushioning Gasket Tapes ECG8035H, ECG8055H, and ECG8075H provide a clean, compressible, and highly conductive alternative. Built with soft, conductive polyurethane foam laminated on both sides with 3M’s high-performance Electrically Conductive Adhesive Transfer Tape (ECATT), these tapes ensure robust Z-axis and X-Y plane conductivity.
Key Performance Benefits
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Exceptional Electrical Conductivity
Ultra-low resistance ensures reliable grounding across mating surfaces. -
Consistent EMI Shielding
Tested shielding effectiveness across 30 MHz to 3 GHz helps control interference and maintain device compliance. -
Excellent Cushion & Recovery
The compressible foam core fills surface gaps and tolerates mechanical shock or vibration, maintaining contact over time. -
Thermal Stability
Operates in demanding conditions with a working temperature range up to 125°C short-term and 80°C long-term, making it suitable for harsh electronics environments. -
Versatile Bonding & Easy Assembly
Pressure-sensitive adhesives simplify installation and allow for precision die-cut shapes, reducing assembly time compared to screws or clips.
Available Thicknesses & Part Options
| Tape Type | Typical Thickness |
|---|---|
| ECG8035H | 0.35 ± 0.05 mm ((.014”) |
| ECG8055H | 0.55 ± 0.07 mm (.021”) |
| ECG8075H | 0.75 ± 0.08 mm (.030”) |
This range allows engineers to select the exact compressibility and gap-filling performance required for their enclosure and board design.
Typical Applications
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Mobile devices & flat-panel displays: Grounding LCD and PDP modules to reduce EMI leakage.
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Telecom & networking equipment: EMI cage assembly and bonding to printed circuit boards (PCB).
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Consumer electronics housings: Connecting covers, frames, or metal cases for stable grounding.
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Industrial & medical electronics: Protecting sensitive circuits from mechanical vibration and electrical noise.
Application Tips
For the best adhesion and electrical performance:
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Clean and lightly abrade metal surfaces (e.g., with Scotch-Brite™ pads).
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Apply pressure with a roller or finger to maximize adhesive contact and exclude air.
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Apply within 17°C–35°C for optimal bonding; pre-warm substrates to improve tack at cooler temperatures.
Why Choose the 3M™ ECG8000H Series
The ECG8000H Series streamlines EMI control and grounding while protecting components from shock and vibration. By combining electrical conductivity, mechanical resilience, and easy integration, these tapes enable faster, cleaner, and more reliable builds for modern electronics. NEDC does custom die cutting, and waterjet cutting to convert these tapes into finished parts.