Engineered for precise electrical conductivity, ground dissipation, and thermal-barrier bonding in microelectronics, wave soldering, and automotive powertrains.
Zhuhai Huayuan Electronics Co., Ltd. (established in 2007) combines world-class polymer synthesis, roll-to-roll metal foil coating, and ISO 9001 certified cleanroom environments to deliver high-attenuation shielding products with tight batch-to-batch consistency.
Operating directly within the Pearl River Delta electronics cluster (factories in Zhuhai and Zhongshan, international trade hub in Hong Kong), Huayuan leverages immediate raw foil procurement (electrolytic & rolled annealed copper) alongside localized acrylic resin formulation, cutting lead times to less than 7 days for custom slitting.
Unlike commodity converters that coat generic adhesives, Huayuan synthesizes conductive acrylic adhesives loaded with micron-scale nickel-plated silver spheres or gold-plated copper particles. This delivers continuous isotropic (X, Y, Z axis) low resistance without degrading the pressure-sensitive bond strength.
Equipped with high-speed multi-station rotary die-cutters, CCD visual alignment systems, and laser profiling, our facility transforms jumbo logs into pre-shaped, easy-release EMI gaskets with pull-tabs, saving down-stream assembly hours for PCB enclosure sealing.
Driven by 5G sub-6GHz to mmWave frequencies, EV wide bandgap power electronics (SiC/GaN), and denser consumer packages, electromagnetic interference challenges demand multidimensional copper foil tape properties.
As frequencies surge, electromagnetic waves travel predominantly along the surface of conductors. Huayuan utilizes high-ductility Rolled Annealed (RA) copper foil alongside microscopic surface passivations to minimize surface roughness loss, preventing attenuation dips between 10GHz and 18GHz.
Miniaturized power chips generate intense thermal flux alongside high-frequency noise. Our composite hybrid tapes combine 35μm high-purity copper foil backing with a ceramic-doped thermal conductive adhesive, simultaneously serving as a 380 W/m·K thermal spreader and an 80 dB Faraday shield.
Western automotive and computing leaders enforce strict zero-halogen mandates (Cl < 900ppm, Br < 900ppm, total < 1500ppm). Huayuan’s proprietary flame-retardant chemistry achieves UL 94 V-0 ratings using non-toxic phosphorous-nitrogen formulations rather than banned halogenated additives.
| Property / Specification Parameter | Single-Sided Conductive Copper Tape | Dual-Sided Conductive Copper Tape | Tin-Plated Copper Shielding Foil | Standard Test Method |
|---|---|---|---|---|
| Carrier Thickness (Foil) | 18 μm / 25 μm / 35 μm / 50 μm | 18 μm / 25 μm / 35 μm / 50 μm | 25 μm / 35 μm (Sn Electroplated) | ASTM D3652 |
| Adhesive Technology | Non-Conductive Pressure Sensitive Acrylic | Conductive Particle-Dispersed Acrylic | Conductive / Non-Conductive Acrylic | Huayuan In-House Standard |
| Electrical Resistance (Through Adhesive) | N/A (Dielectric layer > 10^8 Ω) | < 0.05 Ω / inch² (Z-axis) | < 0.03 Ω / inch² | MIL-STD-202 Method 307 |
| Shielding Effectiveness (30MHz to 1.5GHz) | 65 dB to 75 dB | 75 dB to 95 dB | 80 dB to 100 dB (Anti-Oxidative) | ASTM D4935 / IEEE 299 |
| 180° Peel Adhesion (to Stainless Steel) | > 1100 g/25mm (High Tack) | > 950 g/25mm | > 1000 g/25mm | PSTC-101 / ASTM D3330 |
| Service Temperature Range | -20°C to +120°C (Intermittent 155°C) | -20°C to +120°C (Intermittent 155°C) | -40°C to +140°C | Continuous thermal soak |
From cleanroom surface-mount PCB lines to ruggedized off-highway traction inverters, Huayuan copper shielding tapes resolve acute magnetic resonance and cross-talk issues across multiple key sectors.
High-voltage switching in electric vehicle drivetrains induces electromagnetic ripple that corrupts low-voltage sensor lines. Huayuan dual-conductive copper tape wraps wiring harnesses and grounds internal casing covers, preventing erroneous BMS voltage readouts and inverter-induced interference.
Remote Radio Units (RRUs) encounter extreme outdoor weather alongside tight multi-channel RF radiation. Our tin-plated copper foil tape guarantees zero galvanic corrosion when bonded against die-cast aluminum chassis, preserving ground path continuity across a 10-year outdoor field life.
Sensitive ultrasound sensors and MRI patient monitoring racks demand pristine signal-to-noise ratios. Huayuan provides high-tack, single-sided copper foil tapes that seal seams in RF-shielded architectural doors and enclosures, blocking external transient stray frequencies.
High-frequency switching transformers emit strong magnetic fringing fields. By applying a continuous outer copper tape loop (Faraday ring) over high-temperature polyimide or mylar tape, eddy currents are grounded back to chassis ground, mitigating radiated EMI compliance failure.
International procurement teams from North America, Europe, and Asia require stringent supply chain verification to ensure uninterrupted manufacturing and full regulatory alignment.
Every jumbo roll manufactured at Huayuan's Zhuhai and Zhongshan facilities receives a unique tracking barcode linking back to the raw copper ingot lot, the specific adhesive reactor batch, and online laser thickness monitoring logs. Full material test reports (MTR) accompany each export lot.
Global buyers facing lengthy supplier backorders leverage Huayuan’s direct drop-in equivalents for standard industry references (such as 3M 1181, 3M 1182, 3M 1245, and 3M 69). Our technical team provides side-by-side third-party comparative data sheets to streamline internal engineering sign-offs.
Benefiting from proximity to Hong Kong International Airport, Yantian, and Nansha deep-water ports, Huayuan provides flexible shipping programs. We maintain localized safety inventories and reserved master rolls for contracted OEMs, guaranteeing rapid replenishment.
Clear, direct answers regarding conductivity mechanisms, dielectric performance, slitting capabilities, and export compliance.
Single-conductive copper tape features a metallic copper backing coated with a non-conductive, dielectric acrylic pressure-sensitive adhesive. Electrical current flows solely across the top foil surface; it is ideal for perimeter grounding, cable wrapping, and snail/slug barriers. Double-conductive copper tape features an adhesive matrix loaded with microscopic conductive particles, allowing low-resistance electrical current to pass seamlessly through the adhesive layer (Z-axis) into the underlying metal substrate.
Unprotected copper is susceptible to atmospheric moisture and oxidation. Huayuan applies an ultra-thin organic passivation treatment to standard copper foils, preventing discoloration without impacting solderability. For harsh or corrosive marine/industrial environments, we recommend our electroplated tin-coated copper foil tape, which completely resists galvanic corrosion when mounted against aluminum housings.
Yes. Our dust-free converting workshops operate high-speed automated slitters capable of slitting down to 2.5 mm widths with tolerances of ±0.1 mm. Furthermore, our precision rotary and flatbed die-cutting units can produce custom geometries, perforated parts, kiss-cut gaskets, and extended pull-tab liners tailored to high-speed robotic surface-mounting pick-and-place systems.
Zhuhai Huayuan Electronics operates under an audited ISO 9001:2015 quality management framework. All copper tape series are SGS-tested for full compliance with the European RoHS directive and REACH SVHC regulations. Select electrical insulation products hold UL recognitions. Comprehensive Certificates of Analysis (CoA), thickness verification data, and outgassing reports are provided per production run.
Yes. Our pure electrolytic copper foils are fully compatible with standard lead-free tin-lead and SAC305 wave soldering, rework stations, and hand-soldering irons. Solder wets rapidly across the copper surface without de-wetting, enabling direct grounding jumpers between PCB trace planes and device shielding enclosures.
For standard stock foil thicknesses (18μm, 25μm, 35μm, and 50μm), sample prototype rolls can be slit and dispatched within 24–48 hours via express courier. For custom OEM formulations or private-label converting, initial trials start with low MOQs (typically 1–2 master logs), accommodating both engineering pilots and large-scale manufacturing runs.
Expanding beyond metallic foils into high-viscosity structural mounting, cleanroom nano gels, dielectric glass-cloth wraps, and thermal interface tapes.
