Master Rolls
Full-width rolls for coating, laminating and further converting.
Specialty Films / Electrical Insulation
Polyimide Film
A polyimide base film for electrical insulation, tape coating, lamination and conductor lapping.
Functional Uses
Where the film performs its role.
ATR-PI may serve as primary insulation, tape backing, a laminate component or an overlapping lapped layer, depending on the finished construction.
Surface
Dimension↔
Winding
Converting Quality
Consistency that carries into your next process.
ATR-PI is supplied with close attention to surface condition, dimensional consistency and winding quality. These details support stable handling in coating, laminating, slitting and conductor-lapping processes.
01Surface Quality+
A clean, smooth and well-controlled film surface supports coating and laminating processes where surface defects may affect the finished construction.
02Dimensional Consistency+
Controlled thickness, width and roll profile help maintain stable handling during slitting, lapping and other converting operations.
03Winding & Batch Control+
Roll build, edge alignment and batch traceability support repeatable processing from one delivery to the next.
Available Forms
Supplied in the form your process requires.
ATR-PI is available in master rolls, slit rolls and sheets. Width, length, core size and winding configuration can be confirmed according to the intended process and handling requirements.
Slit Rolls
Customer-specified widths for lapping, insulation and downstream processing.
Sheets
Cut to agreed dimensions for insulation and component processing.
What We Confirm
Four inputs shape the film and supply format.
- 01ApplicationMotor and transformer insulation, tape backing, laminated insulation or conductor lapping
- 02Operating ConditionsElectrical, thermal and mechanical demands
- 03Downstream ProcessCoating, laminating, slitting, lapping or component converting
- 04Roll & PackagingWidth, winding, core and shipment protection
Technical Data
Data for the selected film and format.
Key values should be shown only from the confirmed ATR-PI TDS. The complete technical document can be provided for the selected thickness and supply format.
Request Technical Data- 01Electrical Properties
- 02Mechanical Properties
- 03Dimensional Stability
- 04Surface & Appearance
- 05Slitting & Packaging
Industry Applications
See the film in the wider insulation system.
The same film function may support different industries and constructions. Explore each application system to view related materials, operating conditions and selection considerations.
Motor & Transformer Systems
Around windings, within slot systems and at selected separation or fixing points.
Explore the Application System
Wire & Cable Systems
As an overlapping wrapped layer around the conductor bundle or existing insulation system.
Explore the Application System
Electronics & Precision Converting
As a film base, coverlay-related layer or converted insulation feature within the agreed construction.
Explore the Application System
Battery & New Energy
Around selected busbar, connection, edge-protection or sensor-fixing locations as defined by the assembly.
Explore the Application SystemRelated Products
Compare other polyimide film directions.
Your Application Comes First
Start with your application and process requirements.
Share the intended use, operating conditions, required dimensions, roll format and key concerns. We can discuss the suitable film direction and provide the relevant technical data.