Engineered in dust-free coating workshops under ISO 9001 quality controls. Select a product specification below to explore custom slit logs, die-cut laminates, or request TDS/SGS documentation.
Why aromatic polyimide chemistry paired with cross-linked silicone pressure-sensitive adhesives represents the pinnacle of dielectric stability under extreme thermal excursions.
Synthesized via polycondensation of pyromellitic dianhydride (PMDA) and 4,4'-oxydianiline (ODA), the aromatic imide ring matrix confers unyielding glass transition temperatures (Tg > 360°C). This aromatic resonance suppresses chain scission under persistent mechanical vibration, cryogenic dips down to -269°C, and sustained heating to 260°C.
Standard tapes fail due to adhesive melting or polymer decomposition. Our high-temperature Kapton tape utilizes platinum-catalyzed organosiloxane formulations. The Si-O-Si backbone exhibits bond energies of 445 kJ/mol (far exceeding conventional C-C bonds of 346 kJ/mol), ensuring zero carbon residue and residue-free peel even after 300°C solder reflows.
Operating as a primary Class H (180°C) and Class C (220°C+) electrical insulator, our 1 mil (25μm) Kapton film delivers dielectric breakdown thresholds exceeding 6,500 Volts (ASTM D149). When compounded with anti-static organometallic top-coats, peel voltage is capped under 50V, eliminating electrostatic discharge (ESD) hazards in SMT fabrication.
| Film / Adhesive Configuration | Total Caliper (mil / mm) | Dielectric Breakdown (kV) | Peel Adhesion (N/25mm) | Continuous Temp (°C) | Peak Excursion (Short Term) | Common Factory Application |
|---|---|---|---|---|---|---|
| Standard Amber Kapton (1 mil PI + Silicone) | 2.6 mil / 0.065mm | 6.5 kV | 6.0 - 7.5 | -40°C to 260°C | 300°C (10 min) | PCB Wave Soldering, Gold Finger Masking |
| ESD Low-Static Polyimide Tape | 2.5 mil / 0.063mm | 6.0 kV | 5.5 - 6.5 | -40°C to 260°C | 280°C (15 min) | High-Density SMT, Wafer Dicing Mask |
| Thick-Core High Dielectric (2 mil PI + Silicone) | 3.8 mil / 0.095mm | 9.5 kV | 7.0 - 8.5 | -50°C to 260°C | 320°C (5 min) | Traction Motor Slot Liner, EV Busbar Shield |
| Electrolyte-Proof Lithium Battery PI Tape | 2.2 mil / 0.055mm | 5.5 kV | 6.5 - 8.0 (Acrylic) | -20°C to 150°C | 180°C (30 min) | Prismatic / Pouch Cell Tab Termination |
| Thermally Conductive PI Composite Tape | 3.2 mil / 0.080mm | 5.0 kV | 7.5 - 9.0 | -40°C to 200°C | 250°C (20 min) | Power Transistor Bonding & Heat Dissipation |
Why leading Tier-1 electronics manufacturers and global converters rely on our dual Zhuhai and Zhongshan industrial infrastructure to mitigate single-source bottlenecks.
Our strategic Pearl River Delta location affords immediate raw-material synergy—from synthesized polyamic acid resins to high-purity organosilicon polymers. By internalizing corona surface-treating, micro-gravure adhesive application, multi-stage nitrogen curing, and high-speed CNC slitting, Huayuan eliminates intermediate margins while reducing raw-material lead times to under 48 hours.
High-voltage battery packs and sub-micron semiconductor packaging cannot tolerate micro-particulate contamination. Both the Zhuhai base (Nanping Science & Technology Park) and the Zhongshan facility operate enclosed positive-pressure cleanrooms. Optical automated surface defect inspection (AOI) lines monitor web width, pinholes, air pockets, and adhesive streak variations in real time.
Meeting unique assembly geometries is our core competency. Utilizing imported rotary knife stations, laser plotters, and tight-tolerance shear slitters, we offer custom log rolls from 2mm up to 1,000mm in width (tolerance ±0.1mm), alongside kiss-cut gaskets, perforated polyimide tabs, and custom-embossed PET release liners optimized for automated pick-and-place robotics.
Explore how engineering teams across Europe, North America, Southeast Asia, and China integrate Kapton temperature tapes into mission-critical systems.
Applied in EV pouch and prismatic battery cells (CATL, BYD, LG Chem architectures) for tab insulation, pouch margin sealing, and busbar wrapping. The tape withstands highly aggressive carbonate-based liquid electrolytes (LiPF6) without delamination, swelling, or adhesive leaching.
Essential for gold finger edge masking, BGA reflow, and through-hole soldering shields. Protects sensitive trace gold plating from harsh molten SAC305/lead-free solders at 260°C–280°C, peeling off cleanly without leaving adhesive shadows or adhesive fracture residue.
Engineered for high-radiation, deep vacuum outer-space harnesses. Low outgassing rates conform to NASA SP-R-0022A and ESA PSS-01-702 specs (CVCM < 0.1%, TML < 1.0%), guarding against volatile lens condensation during rocket stage separation and orbital thermal cycling.
Serves as ground, barrier, and inter-phase wrap in high-frequency power electronics and wind-turbine generators. High tear resistance and thermal endurance prevent mechanical breakdown under high mechanical winding tension and varnish impregnation cycles.
How Huayuan Electronics and advanced Chinese material institutes are tackling emerging challenges in wide-bandgap semiconductors, solid-state batteries, and carbon-neutral processing.
As solid electrolyte ceramic separators (LLZO/sulfide chemistries) transition from pilot to gigawatt scale, next-gen Kapton tapes are being formulated with ultra-thin 12.5μm carriers paired with zero-silicon hybrid acrylics. This prevents lithium dendrite propagation and avoids chemical reactivity with volatile solid-electrolyte interfaces.
Silicon Carbide (SiC) and Gallium Nitride (GaN) power modules operate at significantly higher switching frequencies and junction temperatures (>200°C). Our R&D team is standardizing boron nitride (BN) and alumina-doped thermally conductive polyimide films, delivering dielectric insulation alongside in-plane thermal transfer of >1.5 W/m·K.
Environmental compliance is paramount. Huayuan has integrated solvent-recovery thermal oxidizers capturing over 98.5% of hydrocarbon emissions during silicone drying tunnels. Emerging research targets solvent-free, UV-curable high-temperature release agents that eliminate volatile organic compounds (VOCs) to satisfy the EU Green Deal.
We engineer industrial adhesive tapes to pass the scrutiny of third-party qualification audits and strict international environmental guidelines.
Production facilities have operated uninterrupted under rigorous ISO 9001 protocols since 2013. Every master jumbo roll carries batch tracking, curing temperature logs, and coating weight lot numbers.
Selected polyimide and mylar insulation grades are rated UL-94 V-0 for self-extinguishing behavior, safeguarding transformers, home electronics, and switchgears from electrical fire spread.
Independent annual testing by SGS verifies zero restricted heavy metals (Lead, Cadmium, Mercury), polybrominated biphenyls (PBB/PBDE), or halogenated plasticizers, facilitating immediate EU customs entry.
Established in 2014, Huayuan International Technology (Hong Kong) Co., Ltd. provides seamless international escrow, LC/TT payments, multi-currency invoicing, and rapid bonded shipping dispatch.
Clear, authoritative technical answers addressing common questions asked by electrical engineers, supply chain managers, and converter specialists.
Direct factory production lines for thermal insulation, conductive fabric grounding, double-sided foam mounting, and specialized high-voltage dielectric solutions.
