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Gansu Juxiang Fluoroplastics Technology Co.,Ltd. is a fluoroplastic manufacturer based in Yumen City, Gansu Province, established in September 2025 as a joint venture between Zhejiang Jiaxiang Fluoroplastics Co., Ltd. and Gansu Juhua New Materials Co., Ltd. of the Juhua Group, with a second production base in Zhejiang. ETFE Film sits inside a portfolio that also covers PTFE, PFA, FEP, PCTFE, PI, PEEK and PVDF materials, semi-finished shapes and machined parts. We supply ETFE film in roll form, with gauge, slit width, roll length and surface finish set against the application rather than drawn from a single stock list.
ETFE Film We Supply
ETFE is an ethylene-tetrafluoroethylene copolymer: melt-processable, around 1.74 g/cm³, carrying the chemical, weathering and electrical resistance of the fluoropolymer family with markedly higher tensile toughness than PTFE. Film is transparent as standard and is supplied with a glossy or matt surface.
| Thickness (µm) | Web width (mm) | Roll weight (kg/roll) | Maximum roll length (m) | Thickness tolerance | Colour | Surface |
|---|---|---|---|---|---|---|
| 25 | 1250 | 54.7 | 1000 | +5 / −0 µm | Transparent | Glossy or matt |
| 50 | 1250 | 54.7 | 500 | +5 / −0 µm | Transparent | Glossy or matt |
| 75 | 1250 | 49.2 | 300 | +5 / −0 µm | Transparent | Glossy or matt |
| 100 | 1250 | 54.7 | 250 | +5 / −0 µm | Transparent | Glossy or matt |
Roll length is set by gauge so that roll weight stays inside a workable band for handling and unwinding equipment. Widths below the 1250 mm master web are slit to the customer's plan; slit width, core diameter, interleaf and splice policy are fixed at order.
Where ETFE Film Fits
ETFE film is chosen where a thin, chemically inert, electrically insulating layer has to survive heat, light and repeated handling without embrittling. The same roll stock serves quite different duties depending on the downstream process, so we match gauge and surface to the operation rather than to a generic material datasheet.
| Application area | Function of the film | Gauge band | Governing requirement |
|---|---|---|---|
| Semiconductor and LED processing | Carrier, protective and release layer in wet benches and clean handling | 25–100 µm | Particle cleanliness, flatness, absence of pinholes and gels |
| Flexible printed circuits | Heat-resistant dielectric and cover layer for flexible laminates | 25–50 µm | Dimensional stability through lamination, dielectric strength, bond after press cycle |
| Flexible solar and PV modules | Encapsulation and front or back protective layer | 50–100 µm | UV and weather resistance, light transmission, seal integrity after lamination |
| Pharmaceutical packaging | Inert barrier and product-contact layer | 50–100 µm | Chemical inertness, low extractables, clean heat sealing |
| Construction and agriculture | Weathering film, protective glazing and greenhouse covering | 75–100 µm | UV stability, transmission, tensile and tear strength |
| Chemical and general industrial | Anti-stick release sheet, corrosion barrier, gasket facing | 25–100 µm | Release behaviour, chemical resistance, service temperature |
Film for these duties comes from the same four standard gauges; what changes is the acceptance emphasis. A 25 µm roll destined for a flexible circuit laminate is judged on gauge profile and dimensional change under press constraint, while a 100 µm roll for a module cover or greenhouse panel is judged on tensile, tear and weathering performance.
Specifications That Decide the Grade
Selection usually turns on a small number of measurable properties rather than on the polymer name. The values below are typical for the film we supply and are confirmed against the inspection record issued with each roll.
- Specific gravity: 1.74 g/cm³
- Melting point: 260 ± 10 °C
- Tensile strength: > 39.2 MPa
- Tensile elongation: 200–510 %
- Tear strength: 170–250 N/mm
- Volume resistivity: > 1 × 10¹⁵ Ω·cm
- Linear dimensional change: ± 5 %
- Gauge: 25, 50, 75 and 100 µm, tolerance +5 / −0 µm
- Web width: 1250 mm master, slit to order
- Surface: transparent, glossy or matt
Three variables decide whether a roll runs cleanly on the customer's line: gauge profile across the web, the way the film behaves at lamination or sealing temperature, and edge quality after slitting. We agree how each is measured before production, because a ±5 % dimensional change measured on free film is not the same number as one measured under press constraint.
Quality Control and Acceptance
Film is inspected against an acceptance sheet agreed before the first production run, and the same criteria are referenced in the record that travels with each roll.
- Gauge band and measuring method, including the points across the web where thickness is checked
- Width, slit tolerance and edge condition
- Visual limits for gels, fisheyes, pinholes, scratches and contamination
- Splice count and splice marking per roll
- Roll build, winding tension and core condition
- Labelling, traceability and packing configuration
Where a project carries its own verification or material declaration requirements, those are raised at the specification stage so that the sampling plan and documentation are built into the order rather than added afterwards.
Roll Format, Packaging and Line Handling
Film is wound on cores and protected for transport, with the packing configuration set alongside roll length and the handling equipment at the customer's plant.
- Core diameter and roll weight agreed per order
- Interleaf and edge protection where a glossy surface must stay unmarked
- Moisture-barrier wrapping and pallet configuration for export shipment
- Roll and pallet labelling to the customer's part number where required
- Storage guidance issued with the delivery documentation: dry, temperate store, out of direct sunlight, rolls acclimatised before unwinding
Working Across Our Fluoroplastic Range
ETFE film is one product in a range that runs from raw shapes to finished components. PTFE Film covers the skived and unsintered constructions used for electrical and release duty, and PTFE Adhesive Tape covers the self-adhesive format used in cable wrapping and surface protection. PEEK, PI and PCTFE products serve the higher-temperature and tighter-tolerance end of the same projects.
Because film, sheet, rod and machined-part production sit within the same operation, a project needing a dielectric film, a machined insulator and a gasket can be quoted as one package with a consistent set of material declarations. Custom work is developed from drawings or samples, and our technical team handles material matching for working conditions that fall outside the standard grades.
Information We Use to Configure Your Solution
Quotations are built from the working point, not from a catalogue number. The inputs below let us fix gauge, width, roll format and acceptance criteria in one pass.
- Application and the function of the film in the finished part
- Required gauge, tolerance and any intermediate thickness
- Web width and slit plan, including edge condition
- Roll length, core diameter and the maximum roll weight the line can handle
- Surface finish, plus any bonding, printing or sealing requirement
- Property limits that will be checked at goods-in: tensile, elongation, tear, dielectric strength, dimensional change
- Downstream temperature, pressure and dwell during lamination or heat sealing
- Contact and regulatory requirements for medical, pharmaceutical or food-adjacent use
- Documentation, labelling and packing requirements
- Annual volume, call-off pattern and destination
Send a specification sheet or a sample of the film currently in use, and we will confirm grade, roll format and acceptance criteria in the quotation. As an ETFE Film manufacturer working from our Yumen base, we answer technical enquiries within 12 working hours.
Frequently Asked Questions
Which ETFE film thicknesses and widths do you supply?
Standard gauges are 25, 50, 75 and 100 µm at a 1250 mm web width, with a thickness tolerance of +5 / −0 µm. Narrower widths are slit from the master web to the customer's plan, and roll length is set by gauge: up to 1000 m at 25 µm, 500 m at 50 µm, 300 m at 75 µm and 250 m at 100 µm. Gauges outside this set are reviewed against volume and end use before we confirm.
Can you produce ETFE film to our own specification or sample?
Yes. Customization is the core of our work, and film is produced against a specification sheet or a reference sample rather than a stock list. We confirm gauge, width, surface, roll format and the property limits that will be tested, then issue the quotation against those figures.
What documentation and packaging accompany a roll?
Each roll carries an inspection record referencing the agreed acceptance criteria, together with labelling that can be set to the customer's part number. Rolls are wound on cores, interleaved where the surface requires it, wrapped for moisture protection and palletised for export. Storage and handling guidance is issued with the delivery documentation.
What do you need from us to quote an ETFE film specification?
The application, the gauge and width required, the roll length and core size your line accepts, the surface finish, and the property limits that will be checked at goods-in. Downstream lamination or sealing temperature, annual volume and any documentation or contact requirements complete the picture; with those we confirm grade, roll format and acceptance criteria in a single quotation.
Related Products and Categories
Our portfolio also includes Products for applications with different operating ranges, interfaces or integration requirements.
