Factory-direct thermal management, dielectric barrier, and electromagnetic protection tapes manufactured under ISO 9001:2013 standards in Zhuhai and Zhongshan dust-free cleanrooms.
How Chinese chemical engineering innovation, precision tension-controlled coating arrays, and crosslinked organosilicon polymers are transforming global slitter-rewinder efficiency and die-cutting yields.
Traditional polyester tapes suffer from adhesive transfer (ghosting) under high heat. Modern China jumbo manufacturers utilize proprietary nano-silane primers and atmospheric corona treating on biaxially oriented polyethylene terephthalate (BOPET) carriers, achieving exceptional cross-link bonding that eliminates adhesive shearing during post-bake demasking.
BOPET films undergo secondary multi-stage thermal stabilization to suppress longitudinal shrinkage under 200°C exposure down to <0.35%. This high dimensional integrity protects critical edge boundaries in powder coating ovens, printed circuit board gold-finger electroplating baths, and wave soldering profiles.
By supplying jumbo master rolls with continuous widths of 980mm, 1040mm, 1280mm, and 1320mm in lengths extending to 3000m/6000m, converters eliminate slitter downtime, slash web-splice waste, and obtain uniform caliper consistency (±1.5µm) from core to outer circumference.
Decoupling peel mechanics, tack profiles, and high-temperature crosslinking reactions on BOPET backings.
Crosslinked using platinum or organic peroxide catalysts, PDMS silicone pressure-sensitive adhesives provide unmatched release properties from low-surface-energy substrates, resisting continuous thermal dwell at 200°C–220°C for 30 minutes without hardening, bleeding, or leaving adhesive residue on anodized aluminum or copper.
Formulated for Class B (130°C) electrical insulation, high-purity solvent acrylic adhesives crosslinked with isocyanates provide outstanding solvent resistance against mineral oils, transformer varnishes, and Freon flushes, delivering high dielectric breakdown voltage (>5.5 kV) at a lower procurement cost point.
Jumbo rolls intended for rotary die-cutting utilize custom fluorosilicone-coated polyester release liners (25µm, 50µm, 75µm). The selective surface tension gap ensures uniform unwind force (15–35 g/inch) without delaminating during high-speed laser cutting or punch-die kiss-cutting.
| Performance Parameter | Standard Green PET Silicone Tape | High-Temp Mylar Acrylic Tape | Ultra-Thin PET Double-Sided | Test Standard |
|---|---|---|---|---|
| Carrier Film Thickness | 25 µm / 50 µm BOPET | 25 µm / 38 µm / 50 µm PET | 12 µm / 25 µm Transparent PET | ASTM D3652 |
| Total Caliper (Film + Adhesive) | 60 µm – 90 µm (±2 µm) | 55 µm – 85 µm (±2 µm) | 30 µm – 100 µm | ASTM D3652 |
| Adhesive Chemistry | Catalyzed Silicone Gel | Thermoset Polyacrylate | Modified Tackified Acrylic | Spectroscopy FTIR |
| 180° Peel Adhesion to Steel | 6.0 – 9.0 N / 25mm | 8.0 – 12.0 N / 25mm | 14.0 – 20.0 N / 25mm | ASTM D3330 / PSTC-101 |
| Thermal Endurance (Peak) | 200°C – 220°C (30 min) | 130°C (Continuous Class B) | 150°C (Short term) | UL 510 / IEC 60454 |
| Dielectric Breakdown Voltage | ≥ 4.5 kV – 6.5 kV | ≥ 5.5 kV | ≥ 3.0 kV | ASTM D149 |
| Tensile Strength at Break | ≥ 120 N / 25mm | ≥ 110 N / 25mm | ≥ 100 N / 25mm | ASTM D3759 |
| Residue Ghosting After Bake | Zero Residue / Clean | Resistant to Varnish | Cohesive Permanent | Visual & Surface Profiler |
Why multinational converters partner directly with primary Chinese coating factories for jumbo parent rolls.
Precision web edging reduces trim waste to <1.2%. Direct-factory master rolls with clean square edges eliminate slitting wander, allowing converters to cut 10mm–50mm standard rolls with zero telescoping.
Each 3,000-meter jumbo roll is verified for zero or at most one flagged ultrasonic splice, eliminating converter line trips, broken slitter blades, and costly downtime in automated die-cutting cells.
Computerized closed-loop center-surface rewinding controls taper tension curves across the entire roll diameter. This prevents inner core crushing and outer roll sagging during oceanic container freight.
Supplied with heavy-duty 3-inch (76mm) or 6-inch (152mm) high-rigidity phenolic paper cores or dust-free extruded ABS plastic cores for class-100 cleanroom converting environments.
From EV battery pack thermal isolation to aerospace electrocoating masking, discover cross-industry solutions.
Green polyester masking tape with silicone adhesive provides knife-sharp paint lines on aluminum extrusions, engine casings, and sheet metal cabinetry baked at 180°C–220°C. Resists abrasive blast pre-treatment and peels away smoothly without breaking or leaving silicone haze.
Safeguards precious-metal terminal fingers on double-sided and multilayer printed circuit boards during aggressive immersion in chemical plating baths and molten solder pots (260°C short-term dwell). Ensures zero chemical undercutting and leaves contact surfaces residue-free.
Acts as high-reliability insulation wrapping around cathode/anode tabs in pouch and prismatic cells. Engineered with ultra-low halogen chemistry (<50 ppm) and electrolyte-resistant adhesive to prevent hydrofluoric acid degradation inside sealed battery enclosures.
Class B (130°C) certified high-temperature Mylar polyester tape forms interlayer and final outer protective wrapping for high-frequency transformers, switch-mode power supplies (SMPS), and motor stators, delivering high dielectric breakdown strength and flame retardancy.
Utilized for internal busbar fixing and insulation in bifacial solar panels and PV junction boxes. Resists long-term outdoor UV degradation, thermal cycling (-40°C to +85°C), and damp-heat aging in compliance with IEC 61215 accelerated durability protocols.
Flash-breaker PET tapes fix vacuum bagging films and peel plies to carbon fiber tooling molds in aerospace autoclaves. Provides reliable release from prepreg epoxy resins cured at 180°C under 7 bar consolidation pressure.
Operating certified production bases in Zhuhai and Zhongshan with international export routing through Hong Kong.
Primary production base at No. 8, 6th Pingdong Road, Nanping Science & Technology Park, Zhuhai, complemented by our 2025 expansion base in Tanzhou Town, Zhongshan. Our multi-site capacity secures continuous supply pipelines for global high-volume converters.
Class 10,000 dust-free coating chambers equipped with automated beta-ray and infrared online coat-weight gauges maintain adhesive uniformity to ±0.5 g/m² across 1320mm web widths, eliminating dry spots, bubbles, and pinhole electrical leakages.
ISO 9001 certified since 2013, with full in-house analytical laboratories verifying 180° peel adhesion, dynamic shear, breakdown voltage, outgassing, and FTIR fingerprinting. Every jumbo roll bears a QR-coded lot traceability certificate.
Seamless compliance and rapid export channels for procurement teams across North America, Europe, and Asia-Pacific.
Every shipment is supported by current third-party SGS laboratory test reports certifying complete compliance with EU RoHS Directive 2011/65/EU and REACH Candidate List SVHC requirements.
Selected electrical PET insulation tapes are UL recognized components (File Standard UL 510), ensuring safety compliance for consumer electronics, automotive ECUs, and home appliance export products.
Supported by Huayuan International Technology (Hong Kong) Co., Ltd., international buyers enjoy flexible multi-currency settlement (USD, EUR, HKD), transparent Letters of Credit, and rapid bonded transshipment.
Direct access to senior adhesive coating chemical engineers for custom color matching, differential release liner pairings, coat-weight alterations, and pre-production slit sample trials dispatched within 48 hours.
Innovating lower carbon footprints, solvent-free UV-crosslinking, and ultra-thin high-dielectric polyester barriers.
Transitioning to 100% solid-content UV-reactive organosilicone polymer systems eliminates VOC emissions during drying, increases coating web speeds up to 120 m/min, and reduces production energy consumption by 42%.
Deploying chemically depolymerized post-consumer PET resins (30% to 50% rPET content) with identical tensile modulus and dielectric breakdown (>5 kV), assisting automotive OEMs in achieving stringent Scope 3 decarbonization targets.
Incorporating nano-scale alumina and boron nitride ceramic particles into sub-15µm PET matrices to dramatically enhance thermal conductivity (up to 1.2 W/m·K) without compromising breakdown voltage for high-density 5G GaN power converters.
In-depth answers concerning master roll converting, storage stability, silicone crosslinking, and OEM private labeling.
Our standard high-temperature PET tape master jumbos are coated at 980mm, 1040mm, 1280mm, and 1320mm gross widths (with 1000mm, 1020mm, and 1250mm usable slitting width after edge-trimming). Standard jumbo roll lengths are 3,000 meters and 6,000 meters wound on 76mm (3-inch) or 152mm (6-inch) phenolic cores. Custom slit widths down to 3mm or custom-length log rolls (33m, 66m) are fully supported via our high-speed slitting department.
Adhesive transfer or ghosting occurs when the interfacial bond between the carrier film and the adhesive is weaker than the adhesive's bond to the substrate. We solve this by treating optical-grade BOPET films with high-density corona discharge followed by an ultra-thin reactive primer layer before coating our crosslinked silicone. This chemical anchor ensures that when demasking after 220°C thermal exposure, failure occurs cleanly at the adhesive-substrate interface with zero residue.
Stored in original factory packaging away from direct sunlight at 21°C ± 5°C and 50% ± 10% relative humidity, our high-temperature PET silicone tapes retain their certified peel adhesion, tensile modulus, and release values for 12 to 24 months. Each jumbo is vacuum-sealed in heavy polyethylene film with desiccants and suspended on end-cradle wooden pallets to prevent pressure-flat spots.
Silicone adhesives offer maximum heat resistance (up to 200°C–220°C) and clean removability, making them optimal for masking. However, for permanent internal transformer insulation (Class B / 130°C), our thermosetting Mylar PET tapes with crosslinked acrylic adhesives are preferred. Acrylic provides higher resistance to mineral transformer oils, impregnating varnishes, and solvents, while offering superior dielectric breakdown at lower unit procurement cost.
Yes. We offer PET high-temperature tapes laminated with clear or white fluorosilicone-coated polyester release liners in thicknesses of 25µm, 50µm, and 75µm. Our release levels can be tuned from easy (15–25 g/25mm) to tight (40–60 g/25mm), ensuring flawless web tracking, kiss-cutting, and automatic robotic picking in automated electronics assembly lines.
We provide free sample rolls (slit widths or mini-jumbos) for qualified converter and OEM testing. Standard catalog grades ship within 24–48 hours. Custom adhesive coat weights, modified colors (green, blue, amber, red, transparent, black), or special release liner pairings are formulated, coated, and dispatched within 7–10 business days complete with lot-specific Technical Data Sheets (TDS) and SDS documentation.
High-dielectric insulation, structural foam mounting, and industrial masking materials engineered for global OEM applications.
