Explore our foundational series of high-temperature dielectric, structural bonding, and specialized converting rolls manufactured under cleanroom-certified standards in Zhuhai and Zhongshan.
Mylar tape—synthesized from biaxially oriented polyethylene terephthalate (BOPET) film and backed with an engineered cross-linked acrylic or thermosetting adhesive—represents the primary workhorse of modern electrical insulation. In industrial power conversion, transformers, and electronic systems, dielectric breakdown failure is never an option.
At Zhuhai Huayuan Electronics Co., Ltd., our engineering laboratory designs Mylar polyester tape to satisfy thermal class B (130°C) continuous operation with short-duration excursions up to 150°C. The biaxial stretching process imparts exceptional mechanical tensile strength in both longitudinal and transverse axes, delivering impenetrable barriers against solvent attack, varnish impregnation, pinhole punctures, and edge tear.
Unlike standard packaging films, electrical-grade Mylar tape requires ultra-low ionic impurity control to prevent galvanic corrosion of electrolytic copper wire conductors under high humidity and voltage gradients.
| Film / Carrier Type | Total Caliper (mm) | Adhesion to Steel (N/25mm) | Tensile Strength (N/25mm) | Dielectric Breakdown (kV) | Temperature Index (°C) | Primary Industrial Use-Case |
|---|---|---|---|---|---|---|
| PET Mylar (Standard Yellow/Clear) | 0.050 ± 0.005 | ≥ 9.0 | ≥ 110 | 5.5 kV | 130°C (Class B) | SMPS Transformers, Flyback Coils, Relay Wrapping |
| PET Mylar (Flame-Retardant FR) | 0.055 ± 0.005 | ≥ 8.5 | ≥ 115 | 6.0 kV | 130°C (UL 510 FR) | Switchgear, Telecom Power, Inverter Core Insulation |
| Heavy-Duty PET Mylar (50μm Film) | 0.080 ± 0.008 | ≥ 10.5 | ≥ 220 | 8.0 kV | 130°C (Class B) | Motor Stator Interphase, EV Battery Cell Barrier |
| PET Double-Sided Mounting Tape | 0.100 - 0.200 | ≥ 16.0 | ≥ 95 | 3.5 kV | -20°C to 120°C | Display Lens Mounting, Electronics Component Bonding |
| Polyimide (PI) Film Tape (Comparison) | 0.060 ± 0.005 | ≥ 6.5 | ≥ 130 | 6.5 kV | 260°C (Class H) | Wave Solder Masking, High-Heat EV Tab Wrapping |
*Tested under standard laboratory conditions (23°C ± 2°C, 50% ± 5% RH). Huayuan provides custom caliper configurations from 0.025mm to 0.150mm on demand.
Across automotive, consumer electronics, and renewable energy ecosystems, our Mylar polyester tapes serve as critical passive components ensuring functional safety and long-term lifespan.
Applied extensively as inter-layer insulation, core wrapping, and outer bobbin banding in switch-mode power supplies (SMPS). Withstands automatic high-speed tensioned winding without stretching, while resisting prolonged exposure to baking varnishes and potting resins.
Used to wrap prismatic and cylindrical lithium-ion cells, securing internal insulation barriers and module structural liners. The tape’s chemically inert PET backing prevents electrolyte corrosion while maintaining electrical isolation under vibration and temperature spikes.
Serves as ground insulation, slot liner protection, and lead wire tie-down in fractional horsepower motors, automotive starter alternators, and industrial servomotors. Maintains tight winding cohesion under centrifugal forces and elevated operating temperatures.
Deployed in grid-tie solar micro-inverters, commercial power conditioning systems (PCS), and energy storage racks. Our thick-caliper PET tapes provide crucial dielectric standoff between heat sinks, copper busbars, and power semiconductor gate drivers.
Zhuhai Huayuan Electronics Co., Ltd. operates two state-of-the-art production clusters in Guangdong Province, giving international procurement heads unmatched cost efficiency, lead-time certainty, and agile customization.
Operating from Nanping Science & Technology Park in Zhuhai and our expanded Zhongshan plant, Huayuan leverages the world's most densely integrated industrial cluster for polymers, optical grade PET films, synthetic tackifiers, and siliconized release liners. This allows raw material procurement within hours rather than weeks.
Our end-to-end vertical integration encompasses precision adhesive compounding, high-speed reverse roll and comma-coating lines in Class 10,000 dust-free workshops, curing ovens with multi-zone closed-loop thermal regulation, high-speed slitting, and CNC die-cutting. This guarantees zero subcontracting risk and absolute batch consistency.
Every master log roll carries an individual QR code linked to coating temperature logs, adhesive solid content percentages, dry coating thickness measurements, and peel adhesion force data. Certified under ISO 9001 since 2013 with complete retention samples stored for 24 months.
Supported by Huayuan International Technology (Hong Kong) Co., Ltd., international clients benefit from streamlined foreign exchange settlement, direct multi-currency payments, and fast transit times via Shenzhen, Guangzhou, and Hong Kong international ports.
The global demand for high-reliability polyester dielectric tape is experiencing exponential growth, spurred by power electronics miniaturization, global EV adoption, and smart grid automation.
Global OEMs facing inflationary pressures are re-evaluating legacy brand tape contracts. By migrating to Huayuan China direct manufacturing, Tier-1 converters and transformer assemblers reduce baseline BOM costs by 28% to 42% without yielding a single millimeter on dielectric tolerance or UL compliance.
Modern gallium nitride (GaN) and silicon carbide (SiC) power adapters operate at significantly higher switching frequencies. This necessitates ultra-thin 0.025mm and 0.030mm Mylar tapes that minimize thermal insulation buildup while preventing high-frequency eddy current dielectric losses.
Leading electronics conglomerates across North America, Europe, and Southeast Asia are moving beyond single-source vulnerabilities. Huayuan provides the dual-factory safety net: multi-facility production capacity with dedicated buffer stocks in bonded export zones.
As a recognized National High-Tech Enterprise and Guangdong Specialized SME, Huayuan continuously pushes the envelope of polymer chemistry, environmentally conscious syntheses, and nano-dielectrics.
Traditional brominated flame retardants are being phased out globally. Huayuan has engineered proprietary phosphorus-nitrogen synergistic flame-retardant acrylic adhesives that achieve UL 94 VTM-0 and UL 510 flammability ratings while releasing zero corrosive halogen acid gases during combustion.
Transitioning toward 100% solids UV-polymerized pressure-sensitive adhesives. This eliminates residual volatile organic compound (VOC) outgassing—a vital requirement for hermetically sealed automotive sensors, optical assemblies, and cleanroom aerospace payloads.
Developing boron-nitride and ceramic nanoparticle loaded PET film backings. These films maintain complete 5kV dielectric isolation while providing enhanced thermal dissipation pathways across tightly packed transformer coils and power modules.
Our commitment to quality is built on rigorous testing protocols, transparent batch documentation, and absolute adherence to worldwide environmental directives.
Huayuan does not simply ship standard catalog items. We function as an extension of your advanced development team. Whether your application requires micro-slitting down to 1.5mm widths for miniature surface-mount inductors, or custom composite laminations with copper foil or Kapton, our factory is equipped to deliver.
Our engineering services include custom release liner options (single-side or differential silicone PET, glassine paper, extended finger-lift tabs), precise die-cut formats supplied on kiss-cut rolls, custom private labeling, and specialized nitrogen-purged moisture-barrier export crating.
In-depth engineering answers addressing adhesive chemistry, electrical qualification, logistics, and factory capabilities.
Manufactured in our dust-free Guangdong coating facilities, explore our thermal, acoustic, EMI shielding, and structural adhesive series engineered for worldwide industrial qualification.
Qualify our tape directly on your automatic winding machines or assembly lines. Provide your required tape width (mm), total thickness, carrier color, operating voltage, and adhesive system. Our applications engineering department will prepare matched testing samples along with a complete Technical Data Sheet (TDS) and material certifications within 24 hours.
