Electrical insulation
Electrical insulation with material and manufacturing support from prototype through repeat production.
ePTFE film Manufacturer · Direct Factory Supply
ePTFE film
JIAFUXIN manufactures and supplies ePTFE film for industrial buyers that require porous, conformable, chemically resistant and compressible. Standard sizes, custom dimensions and drawing-based factory processing are available.
Engineering overview
Grades, Properties and Manufacturing Options
Select ePTFE film by thickness tolerance, width, dielectric performance, surface treatment, winding and cleanliness. Final suitability depends on the complete operating environment and required service life.
Release liners
Chemical processing with material and manufacturing support from prototype through repeat production.
Cable wrapping
Semiconductor equipment with material and manufacturing support from prototype through repeat production.
Thin sealing and barrier layers
Gaskets and wear pads with material and manufacturing support from prototype through repeat production.
Selection guide
Information Required for Material Selection
Share these details to shorten quotation time and reduce specification risk.
01
Operating temperature
Minimum, maximum and continuous temperature under load.
02
Chemical environment
Media, concentration, pressure and exposure duration.
03
Mechanical demand
Load, movement, wear, creep and dimensional stability.
04
Manufacturing details
Dimensions, tolerance, surface, quantity and documentation.
Technical overview
ePTFE film Specifications
| Material | Expanded Polytetrafluoroethylene |
|---|---|
| Available grades | Sheet, tape, membrane, gasket and application-specific porous structures |
| Manufacturing process | Skiving, extrusion, calendaring, slitting and optional surface treatment |
| Supply formats | Thin gauges, sheets, rolls and custom slit widths |
| Typical temperature capability | Typically -200°C to +260°C |
| Typical density | Commonly about 0.3–1.5 g/cm³ by structure |
| Custom processing | Slitting, sheet cutting, punching, lamination and single- or double-side treatment |
Values are general reference information, not a material certificate. Grade, process, dimensions and test method affect actual results.
Performance and design
Why Engineers Specify ePTFE film
Density, pore structure and compression must match sealing or filtration needs.
Material performance
Porous, conformable, chemically resistant and compressible.
Grade options
Sheet, tape, membrane, gasket and application-specific porous structures.
Selection criteria
Thickness tolerance, width, dielectric performance, surface treatment, winding and cleanliness.
Secondary processing
Slitting, sheet cutting, punching, lamination and single- or double-side treatment.
Frequently asked questions
ePTFE film FAQ
What should buyers verify when choosing a ePTFE film manufacturer?
Confirm the resin or compound, manufacturing route, dimensional tolerance, inspection method and batch traceability. The drawing and service conditions should be reviewed before price becomes the deciding factor.
What information should I send to a ePTFE film supplier?
Send the required grade, dimensions, tolerance, quantity, operating temperature, chemical media, mechanical load, documentation and delivery destination. Photos or drawings help prevent quotation assumptions.
Can the JIAFUXIN ePTFE film factory make custom sizes?
Custom dimensions and secondary processing can be reviewed from a drawing, sample or application specification. Feasibility depends on the material, production method, tolerance and order volume.
What is the difference between ePTFE film film and thin sheet?
Film usually refers to thinner flexible material supplied in rolls or cut sheets. The dividing thickness varies by supplier, so specify thickness, tolerance, width, roll length and surface treatment.
What is the difference between ePTFE and PTFE?
ePTFE is PTFE that has been expanded into a microporous structure. It is more compressible and permeable than dense PTFE, making it useful for sealing, filtration and venting. Compare both in the ePTFE guide.
Is ePTFE waterproof and breathable?
The pore structure can block liquid water while allowing air or vapor transmission, but performance depends on pore size, thickness, pressure differential and surface treatment.
How do I select the right ePTFE film for my application?
Select ePTFE film by thickness tolerance, width, dielectric performance, surface treatment, winding and cleanliness. Final suitability depends on the complete operating environment and required service life.
Which thickness tolerance and roll width are available for ePTFE film?
Provide nominal thickness, tolerance, roll width, roll length, core size and winding requirement. Slitting yield and edge quality should be agreed for narrow rolls.
Does ePTFE film require surface treatment for bonding?
Untreated fluoropolymer surfaces are difficult to bond. State the adhesive, lamination process and treated side so surface treatment and handling can be reviewed.
Can I order samples before repeat production of ePTFE film?
Samples and prototypes can be reviewed before a production order. Approval criteria should identify critical dimensions, appearance, material grade and any required test records.
Talk to an engineer
Request a ePTFE film Quote
Send the material, dimensions, quantity, working conditions and drawings. JIAFUXIN will recommend a practical manufacturing route.