Electrical insulation
CNC turning and milling with material and manufacturing support from prototype through repeat production.
PI film Manufacturer · Direct Factory Supply
PI film
JIAFUXIN manufactures and supplies PI film for industrial buyers that require high-temperature stability, dielectric strength and wear resistance. Standard sizes, custom dimensions and drawing-based factory processing are available.
Engineering overview
Stock Shapes Ready for Precision Machining
Select PI 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
Valve and pump parts with material and manufacturing support from prototype through repeat production.
Cable wrapping
Bearings and guides with material and manufacturing support from prototype through repeat production.
Thin sealing and barrier layers
OEM drawing parts 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
PI film Specifications
| Material | Polyimide |
|---|---|
| Available grades | Unfilled, graphite-filled, PTFE-filled and reinforced grades |
| 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; short-term capability may be higher |
| Typical density | Approximately 1.35–1.55 g/cm³ by grade |
| 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 PI film
Moisture absorption and material brittleness require design consideration.
Material performance
High-temperature stability, dielectric strength and wear resistance.
Grade options
Unfilled, graphite-filled, PTFE-filled and reinforced grades.
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
PI film FAQ
What should buyers verify when choosing a PI 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 PI 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 PI 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 PI 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 PI and PEEK?
Both are high-performance engineering plastics. PI is often selected for extreme thermal and dielectric demands, while PEEK provides strong mechanical performance, chemical resistance and broader processing options. See the PI material guide.
Is polyimide the same as Kapton?
Kapton® is a well-known brand of polyimide film, while polyimide is the generic polymer family. PI also comes in stock shapes and compounds beyond film.
How do I select the right PI film for my application?
Select PI 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 PI 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.
Talk to an engineer
Request a PI film Quote
Send the material, dimensions, quantity, working conditions and drawings. JIAFUXIN will recommend a practical manufacturing route.