Chemical linings
CNC turning and milling with material and manufacturing support from prototype through repeat production.
PI sheet Manufacturer · Direct Factory Supply
PI sheet
JIAFUXIN manufactures and supplies PI sheet 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 sheet by thickness, flatness, production process, grade, filler, surface and allowable deformation. Final suitability depends on the complete operating environment and required service life.
Electrical barriers
Valve and pump parts with material and manufacturing support from prototype through repeat production.
Wear pads and guides
Bearings and guides with material and manufacturing support from prototype through repeat production.
Gaskets and machined flat parts
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 sheet Specifications
| Material | Polyimide |
|---|---|
| Available grades | Unfilled, graphite-filled, PTFE-filled and reinforced grades |
| Manufacturing process | Compression molding, sintering, skiving, extrusion or expansion by material |
| Supply formats | Standard sheets, plates, rolls, cut blanks and drawing-based shapes |
| 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 | Cutting, drilling, milling, turning, engraving, etching and gasket conversion |
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 sheet
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, flatness, production process, grade, filler, surface and allowable deformation.
Secondary processing
Cutting, drilling, milling, turning, engraving, etching and gasket conversion.
Frequently asked questions
PI sheet FAQ
What should buyers verify when choosing a PI sheet 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 sheet 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 sheet 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 sheet sheet and plate?
Sheet and plate often overlap in supplier terminology. Plate generally means thicker, more rigid stock, while sheet may include thinner or roll-form material. Specify exact thickness, tolerance and dimensions.
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 sheet for my application?
Select PI sheet by thickness, flatness, production process, grade, filler, surface and allowable deformation. Final suitability depends on the complete operating environment and required service life.
Which thickness and flatness should I specify for PI sheet?
State the nominal thickness, tolerance, sheet dimensions and flatness required after conditioning. Machined parts may also need extra stock for facing and stress relief.
Talk to an engineer
Request a PI sheet Quote
Send the material, dimensions, quantity, working conditions and drawings. JIAFUXIN will recommend a practical manufacturing route.