3M 1181 Copper Foil EMI Shielding Tape | Conductive Acrylic Adhesive - STK
STK's Authentic 3M Copper Foil EMI Shielding Tape 1181 is an elite, military-grade electromagnetic compatibility (EMC) containment asset designed to establish continuous, low-impedance electrical pathways across specialized hardware interfaces. Constructed from a high-purity, dead-soft copper foil backing (1.4 mil / 0.035 mm foil matrix), this technical tape is paired with 3M's proprietary, highly conductive acrylic pressure-sensitive adhesive (PSA).
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Technical Specifications
|
Adhesive Type |
Conductive Acrylic |
|
Application |
Shielding |
|
Backing (Carrier) Material |
Copper Foil |
|
Backing (Carrier) Thickness (Imperial) |
1.4 mil |
|
Backing (Carrier) Thickness (Metric) |
0.036 mm |
|
Brands |
3M™ |
|
Material |
Copper Foil |
|
Product Color |
Copper |
|
Shelf Life |
5 Year |
|
Specifications Met |
RoHS 2011/65/EU, UL Recognized |
Key Features
Excellent EMI/RFI Shielding Performance:
Provides highly effective electromagnetic interference and radio frequency interference shielding for sensitive electronic devices and communication systems.
Double Conductive Structure:
Both the copper foil backing and conductive adhesive layer provide stable electrical conductivity and grounding continuity across bonded surfaces.
Strong Adhesion with Reliable Grounding：
Conductive acrylic adhesive ensures stable bonding to metals, plastics, and coated surfaces while maintaining long-term conductivity.
Excellent Solderability & Electrical Conductivity：
Copper foil structure supports grounding, static discharge, and electrical continuity applications in PCB and electronic assemblies.
Flexible & Precision Die-Cutting Capability：
Thin copper foil construction easily conforms to irregular surfaces and supports precision die-cut shielding parts for electronic devices.
Engineering Precision: Z-Axis Electromagnetic Continuity & Ultra-Low Contact Resistance
In high-stakes telecommunication base stations, military avionics systems, and medical imaging enclosures, ungrounded electronic gaps can act as slot antennas, causing catastrophic data corruption or system noise failures. STK's supply of genuine 3M 1181 tape resolves these critical vulnerabilities directly:
Definitive Z-Axis Electromagnetic Continuity
The optimized distribution of conductive metallic nodes inside the acrylic system creates an uncompromised volumetric bridge. It establishes perfect surface-to-substrate grounding upon flat compression, draining localized static arcs effortlessly.
Ultra-Low Contact Resistance Profile (≤ 0.005 Ω)
Engineered to maintain absolute metal-to-metal low-impedance continuity. It minimizes contact resistance to prevent signal attenuation and electrical bouncing on delicate RF shield cans and test room partitions.
Exceptional Shielding Effectiveness (60 dB - 80 dB)
Delivers robust magnetic and electrical wave attenuation across a broad spectrum (30 MHz to 1 GHz), meeting rigid military shielding compliance matrices.
High-Stakes Industrial Applications
5G/6G Telecom Infrastructure: Grounding internal RF power amplifiers, microwave cavities, and optical transceivers inside wireless base stations.
Military Aerospace & Avionics: Seamless EMI enclosure sealing, wire harness shielding wraps, and static dissipation plates inside aircraft telemetry housings.
EMC/EMI Testing & Anechoic Chambers: Fastening structural conductive fabric gaps, copper shielding panels, and troubleshooting prototype PCBs during pre-compliance lab audits.
Cryogenic & Analytical Hardware: Low-outgassing electrical connection grounding strips inside high-vacuum laboratory equipment and MRI medical scanning systems.
B2B Factory Supply Capabilities: Original Jumbo Logs, Slitting & Liner Sheets
High-reliability engineering networks cannot tolerate counterfeit components or jagged, un-frayed foil edges that risk short-circuiting close-spaced circuits. STK secures your advanced manufacturing procurement chain through rigorous factory capability protocols:
100% Traceable Authentic 3M Jumbo Logs: We source original bulk 3M 1181 master jumbo logs directly. Every shipment is accompanied by complete Material Certifications, RoHS/REACH compliance files, and Certificate of Analysis (COA) to support tier-1 quality control audits.
Precision Burr-Free Slitting: Operating high-accuracy automated razor slitting lines, we cut master 3M logs into narrow shielding ribbons down to 3 mm widths with smooth, non-warped edges. This helps prevent micro-tears during high-tension machine wrapping.
Custom Die-Cut Sheet Pieces with Extended Backing: Send us your CAD or PDF schematics. We precision-stamp 3M 1181 into localized grounding rings, custom connector pads, or multi-window perimeter gaskets. These are supplied on high-stability clear PET liners or pre-scored paper backing sheets with customized extended pull-tabs to reduce manual handling time on assembly lines.
Equipment
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