Direct OEM/ODM supply from precision coating plants in Zhuhai and Zhongshan. Slit-to-width log rolls and precision die-cut profiles ready for dispatch.
Often designated as Polyester Film Electrical Tape, Yellow Mylar Tape consists of a precision-extruded Polyethylene Terephthalate (PET) substrate bonded with a cured thermosetting or oil-resistant cross-linked acrylic pressure-sensitive adhesive (PSA).
Engineered to suppress high-voltage arcing in dense switchboards and SMPS units. With an intrinsic dielectric breakdown strength exceeding 5,000 Volts across a 0.05mm cross-section, Huayuan yellow mylar prevents pinhole failure under continuous inductive stress.
Industrial transformer fabrication requires vacuum-pressure impregnation (VPI). Our cross-linked acrylic adhesive formulation resists degradation from dielectric transformer oils, hydrocarbon cleaning solvents, and high-solid insulating varnishes without softening or flag-lifting.
Compounded using non-halogenated retardant technology compliant with UL 94 VTM-0 / UL 510 standards. The polyester matrix carbonizes upon external combustion exposure without emitting toxic chlorinated smoke, isolating winding shorts instantly.
| Technical Parameter | Test Standard (ASTM/GB) | Yellow Mylar (PET Acrylic) | Polyimide Tape (PI Silicone) | Glass Cloth (Fiberglass) |
|---|---|---|---|---|
| Base Carrier / Thickness | ASTM D3652 | 0.025 mm PET Film | 0.025 mm Kapton PI Film | 0.130 mm Woven Fiberglass |
| Total Caliper Thickness | Micrometer Gauge | 0.050 mm ± 0.005 | 0.060 mm ± 0.005 | 0.180 mm ± 0.010 |
| Thermal Endurance Class | UL 1446 | Class B (130°C / 266°F) | Class H (180°C ~ 260°C) | Class H (200°C) |
| Dielectric Strength | ASTM D149 (kV/mil) | ≥ 5.0 kV | ≥ 6.5 kV | ≥ 3.0 kV |
| Adhesion to Steel (180°) | ASTM D3330 (N/25mm) | ≥ 8.0 N/25mm | ≥ 6.5 N/25mm | ≥ 9.5 N/25mm |
| Tensile Strength | ASTM D3759 (N/25mm) | ≥ 100 N/25mm | ≥ 115 N/25mm | ≥ 400 N/25mm |
| Electrolytic Corrosion Factor | DIN EN 60454 | 1.0 (Non-corrosive) | 1.0 (Non-corrosive) | 1.0 (Non-corrosive) |
Navigating supply chain volatility requires more than low piece prices. Huayuan provides tier-one resilience through dual-plant geographic risk mitigation, automated cleanroom coating lines, and integrated Hong Kong trade mechanics.
Headquartered at Nanping Science & Technology Park in Zhuhai, backed by an advanced 2025 expansion facility in Tanzhou Town, Zhongshan. Our dual Guangdong manufacturing cluster prevents production stoppages and ensures rolling production schedules during scheduled plant overhauls.
Huayuan International Technology (Hong Kong) Co., Ltd. coordinates FX settlement, letters of credit (L/C), bonded warehousing, and re-export logistics, removing foreign exchange restrictions and streamlining import customs for European and North American enterprise buyers.
Operating dust-free slitting workshops equipped with imported computerized micro-slitters capable of slit widths down to 2.0 mm with ±0.1 mm tolerance. Rotary die-cutting lines generate kiss-cut discs, donut gaskets, and customized multi-layer pull tabs on transparent PET liners.
As power electronics push towards higher switching frequencies (Wide Bandgap GaN & SiC semiconductors), the thermal and chemical stress on passive insulation surges. Discover how Huayuan addresses regional regulatory frameworks and technological evolution.
All batches undergo regular third-party SGS testing. Our yellow mylar tapes strictly comply with EU RoHS (EU) 2015/863, REACH (SVHC list > 240 substances), and halogen-free standards (IEC 61249-2-21: Br < 900ppm, Cl < 900ppm, Total < 1500ppm), ensuring zero export customs seizures.
We provide full documentation for overseas tier-1 OEM PPAP (Production Part Approval Process) Level 3 submissions, including IMDS material declarations, FMEA documentation, batch COA certifications, and remote real-time video factory audits via digital broadcast.
With the transition toward 800V EV architectures and solar photovoltaic inverters, mylar insulation must withstand higher dV/dt transient spikes. Huayuan is pioneering ultra-pure corona-resistant PET formulations to counteract partial discharge aging in inverter magnetics.
Yellow mylar tape is universally recognized in electronic assembly facilities globally. Here is how leading electrical manufacturers integrate our rolls into automated and manual processes.
Serves as primary-to-secondary interlayer insulation, outer wrapping, and margin taping in flyback and LLC resonant transformers. Provides guaranteed creepage distance compliance per IEC 60950-1 and IEC 62368-1 without bulky physical bobbins.
Applied as phase insulation and slot liner reinforcement in brushless DC (BLDC) motors, power tool motors, and fan armatures. The thin profile ensures optimal slot fill factor while offering high puncture resistance against sharp copper wire corners.
Used for prismatic and cylindrical cell terminal wrap, cathode-anode tab joint protection, and BMS wiring bundling. The yellow high-visibility backer allows optical vision sensors to verify tape placement automatically during high-speed packing.
Direct answers to the most common engineering qualification, compliance, and minimum order questions encountered by international sourcing teams.
Explore our complete range of EMI copper foils, heat-resistant glass cloth, structural double-sided adhesives, and heavy-duty grip tapes.
