Direct-from-factory high-temperature solutions qualified for wave soldering, semiconductor packaging, transformer coil winding, and composite structural bonding.
Polyimide (PI) film tapes, commonly referred to in high-spec industries as Kapton film tape, are the pinnacle of polymeric dielectric insulation. Synthesized via the polycondensation of aromatic dianhydrides and diamines, our polyimide backings retain their mechanical, electrical, and physical integrity across extreme temperature envelopes spanning from -269°C up to +400°C (short-term excursions), with continuous service ratings of 260°C (500°F).
Unlike standard polyester (PET) or polyethylene films, our polyimide matrix exhibits virtually no glass transition temperature (Tg) below 360°C. Zero shrinkage during wave soldering, reflow ovens, and composite autoclave curing cycles.
Huayuan PI tapes deliver superior breakdown voltages exceed 6.5 kV at standard 25μm (1 mil) backing thickness. Inert to aggressive polar solvents, flux chemicals, degreasers, and battery electrolytes.
Available with tailored high-tack silicone adhesives engineered for peel-without-residue performance on gold contacts, or optical-grade acrylics designed for superior initial tack and solvent resistance.
| Property Matrix | Standard Polyimide (PI) | ESD Anti-Static PI Tape | Double-Sided Kapton Tape | Thick Backing (50μm) PI |
|---|---|---|---|---|
| Base Film Thickness | 25 μm (1.0 mil) | 25 μm (1.0 mil) | 25 μm (1.0 mil) | 50 μm (2.0 mil) |
| Adhesive Layer | 35 μm Silicone | 35 μm Silicone + ESD | 30 μm Silicone (Dual) | 40 μm Silicone |
| Temperature Resistance | -40°C to 260°C | -40°C to 260°C | -40°C to 260°C | -40°C to 280°C |
| Dielectric Strength | 6.0 - 7.0 kV | 6.0 kV | 6.5 kV | 9.5 - 11.0 kV |
| Surface Resistivity | Standard Dielectric | 10⁶ - 10⁹ Ω/sq | Standard Dielectric | Standard Dielectric |
| Peel Adhesion (SUS) | 6.0 N / 25mm | 5.5 N / 25mm | 6.2 N / 25mm each | 6.8 N / 25mm |
Our tapes are engineered to comply with demanding regional standards across North American, European, and Asia-Pacific manufacturing ecosystems.
Protects gold fingers, edge connectors, and insertion points in IPC Class 3 PCB assemblies during automated lead-free wave soldering and surface mount reflow lines.
Inter-cell thermal runaway mitigation, busbar wrapping, prismatic cell pouch sealing, and tab insulation compliant with UL 2580 and GB/T 31467 standards.
Lightweight, radiation-resistant, non-outgassing insulation for military airframes, orbital satellite harnesses, and high-altitude avionic sensors meeting ASTM E595.
Phase-to-phase and ground insulation for Class H traction motors, wind turbine converters, and high-frequency pulsed power transformers.
From raw polymer synthesis to precision slitting and global dispatch, Huayuan's dual manufacturing plants in Zhuhai and Zhongshan deliver unparalleled supply chain security.
We do not merely convert imported master logs. We run complete coating lines, solvent recovery plants, adhesive blending kettles, and class 1,000 dust-free cleanrooms. This enables strict cost control and consistent adhesive grammage (+/- 1.0 g/m² tolerance).
Tooling and custom laser/rotary die-cutting can be configured within 48 to 72 hours. Our automated slitters process master webs up to 1,050mm down to micro-widths of 2mm with clean, burs-free edge profiles ready for high-speed automated pick-and-place lines.
Operating simultaneous plants in Zhuhai Nanping High-Tech Park and Tanzhou Zhongshan provides our Tier 1 and Tier 2 electronics customers with complete business continuity protection, eliminating production single-point failure.
As semiconductor nodes shrink below 3nm and EV powertrains move to 800V and 1,200V architectures, traditional Kapton tapes face evolving thermal and electrical challenges. Huayuan's R&D team is actively engineering the next phase of functional pressure-sensitive films.
Doping the polyimide substrate and adhesive matrix with boron nitride (BN) micro-fillers to achieve in-plane thermal conductivity exceeding 1.2 W/m·K, allowing simultaneous electrical isolation and heat dissipation in ultra-compact 5G base station power modules.
Deep vacuum stripping processes yielding adhesive systems that meet NASA and ESA SP-R-0022A outgassing criteria: Total Mass Loss (TML) < 1.0% and Collected Volatile Condensable Material (CVCM) < 0.1% for satellite optical payloads.
Developing bio-derived aromatic diamines and halogen-free, phosphorus-functionalized polysiloxanes that surpass future EU REACH restrictives while keeping UL 94 V-0 flame retardancy down to 12.5μm film gauges.
Our international distribution framework through Huayuan International Technology (Hong Kong) provides international procurement professionals with streamlined cross-border trade, transparent documentation, and on-the-ground technical consultation.
Every shipment comes complete with batch-specific Certificates of Analysis (COA), full RoHS (EU Directive 2015/863) test reports, REACH SVHC declarations, and UL File certifications.
Located in the heart of the Greater Bay Area, our containers clear directly through Shenzhen, Guangzhou, and Hong Kong deep-water ports. Fast transit times: 12-14 days to the US West Coast, 18-22 days to European main ports.
Our bilingual materials scientists provide substrate surface energy calculations (dyne levels), adhesion testing on your actual metal/plastic substrates, and custom peel-force profiling to match automated applicator heads.
Direct answers to the most common queries raised by quality assurance managers, R&D engineers, and strategic procurement leads.
Kapton® is a registered trademark of DuPont for their specific polyimide film formulation. As a manufacturer, Huayuan uses high-purity polyimide aromatic precursors that match or exceed the mechanical, thermal (260°C continuous), and dielectric ratings of standard Kapton® HN films. Our tapes provide full drop-in equivalence at significant supply chain efficiencies.
Ghosting or transfer occurs when the silicone resin is under-cured or improperly balanced with anchoring primers. Huayuan applies a proprietary sub-micron corona/primer layer onto the polyimide film before applying platinum-catalyzed silicone. This forms a permanent chemical bond between adhesive and backing, guaranteeing zero adhesive transfer onto gold or tin contact pads even at 260°C peak temperatures.
Yes. In addition to jumbo rolls (500mm - 1040mm) and log rolls, our Zhuhai plant houses high-speed rotary die-cutters and flatbed presses capable of creating complex geometry gaskets, solder masks, dots, and tabs with tolerances down to ±0.1mm, presented on easy-peel fluoropolymer or PET release liners.
When stored in original packaging away from direct UV exposure at standard room conditions (20°C to 25°C and 40% to 60% relative humidity), our polyimide silicone tapes maintain 100% of their peel adhesion, shear strength, and dielectric properties for a minimum of 24 months from the manufacturing batch date.
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