WELLELE flat-wound polyimide tubing uses a polyimide-film construction with an axial overlap. It is reviewed for compact electrical insulation, thermistors, motor or transformer components and short cut-length assemblies where a wound seam is acceptable. Final ID, OD, wall, tolerance and length are confirmed by project. The Kapton name is used only when supplied-film identity and traceability support that trademark.
Axial-overlap polyimide film construction
• Custom ID, OD and wall reviewed by project
• Tolerance and cut length confirmed on the approved drawing
• Short cut-length supply can be reviewed for component assembly
Suitable for compact insulation sleeves
Useful in small coils and electronic assemblies
Suitable for mass component assembly
Good option where seamless tube is not required
Use only when material traceability supports it
Size reviewed by part geometry
Is flat-wound polyimide tubing the same as Kapton tube?
It can be described as Kapton tube only when the tube is made from traceable Kapton polyimide film. Otherwise it should be described as flat-wound polyimide tubing or PI tubing.
What is the main limitation of flat-wound PI tubing?
It has an axial overlap structure, so seam orientation, insertion direction and cut-end quality should be reviewed.
Is flat-wound PI tube suitable for large-bore protection?
Usually it is more suitable for compact and small-to-medium insulation sleeves. Large-bore protection is often reviewed under spiral-wound PI tubing.
What applications are common?
Small motor coils, thermistors, transformers, compressor components, terminals and compact electronic insulation.
What should I send for quotation?
Send ID, wall thickness, cut length, part OD, application, seam sensitivity, temperature and annual quantity.
Engineering recommendation
Select flat-wound polyimide tubing from the complete component dimensions, operating conditions, manufacturing process and acceptance criteria. Use samples to confirm fit and function before volume production.
Spiral-Wound Polyimide Tubing
Extruded Polyimide Tubing
Mylar Tube
Nomex Paper Tube
Spiral-Wound Polyimide Tubing