Quotation is based on material, dimensions, tolerance, application conditions and annual volume
Key capabilities
- Six material and construction families
- Five manufacturing and secondary processes
- Engineering selection by dimensions and operating conditions
- Direct links to concrete product pages and RFQ requirements
Each tubing material provides different advantages in temperature resistance, insulation performance, chemical resistance and mechanical strength
Select a product family
| Family | Use it when | Confirm before quotation |
|---|---|---|
| Mylar/PET film tubing | A thin film sleeve is needed for insulation, protection or shrink fit | Heat shrink, component OD, supplied ID, wall and assembly |
| Polyimide tubing | Thermal stability, electrical insulation or thin-wall precision is required | Process, seam, critical dimension, length format and temperature |
| Nomex/aramid paper tubing | Paper-based electrical insulation is required | Material grade, traceability, wall build, voltage and environment |
| PEEK tubing | Mechanical strength, wear or chemical resistance is central | ID/OD, load, medium, temperature and tolerance |
| Fluoropolymer tubing | Chemical exposure, heat shrink or harsh service is expected | PTFE/FEP/PVDF, temperature, shrink and installation |
| Composite/specialty tubing | A single standard material does not solve the requirement | Layer structure, exposure, dimensions and validation plan |
Polyester film tubing designed for electrical insulation, component protection, separation and fastener isolation applications.Mylar Tube
Typical Applications
Polyimide Tube
High temperature polyimide tubing for semiconductor equipment, sensors, electrical insulation and precision assemblies.
Available Constructions
- Extruded polyimide tubing
- Dip coated polyimide tubing
- Flat wound polyimide tubing
- Spiral wound polyimide tubing
Nomex Paper Tube
Aramid paper tubing designed for electrical insulation systems requiring thermal stability and mechanical protection.
Available Types
- Spiral wound Nomex 410 tube
- Aramid paper tube
High-performance engineering plastic tubing for mechanical strength, dimensional stability, wear resistance and demanding chemical or thermal environments. PEEK tubing provides excellent mechanical strength, chemical resistance and long-term temperature capability.PEEK Tube
Fluoropolymer Tubing
Fluoropolymer tubing including PTFE, FEP and PVDF solutions for chemical resistance and demanding environments.
- PTFE tubing
- FEP tubing
- PVDF tubing
| Process | Product families | Main engineering concern |
|---|---|---|
| Extrusion | PI, PEEK, fluoropolymers | Lumen, eccentricity, wall and coil consistency |
| Dip coating | Thin-wall PI | Coating build, cure, pinholes and surface |
| Flat winding | PET/Mylar and PI film | Axial overlap, short length and insertion direction |
| Spiral winding | Nomex/aramid, PI and specialty sleeves | Overlap, larger ID, roundness and cut-end release |
| Precision cutting | All families | Length tolerance, end quality and automatic feeding |
Manufacturing and quality control
Applications
- Electrical insulation and dielectric separation
- Motor, compressor, transformer and coil components
- Sensors, probes, thermistors and precision instruments
- Fastener and bolt sleeve protection
- Chemical and high-temperature protection
- Medical equipment, diagnostic and in-vitro instrument components with controlled scope
Manufacturing and quality control
- Each concrete product page identifies its manufacturing route and key inspection points.
- Published ranges must be linked to the applicable process and product series.
- Material brands and compliance documents are matched to the exact supplied product.
- Samples are recommended when fit, shrink, seam, lumen or environmental performance is critical
Industrial Tubing Selection Guide
Need High Temperature Resistance?
Choose:
Polyimide Tube
Nomex Tube
PEEK Tube
Need Flexible Electrical Insulation?
Choose:
Mylar Tube
Polyester Tubing
Need Chemical Resistance?
Choose:
PTFE Tube
FEP Tube
PEEK Tube
A reliable tubing specification starts with material, process, dimensions and application environment. Choose a product family above or send your requirement for engineering review.Find the Right Tubing Before Production
Which tubing family should I choose first?
Engineers often select tubing according to the final application requirement rather than material name.
| Application Requirement | Recommended Tubing |
|---|---|
| Motor and transformer insulation | Polyimide Tube / Nomex Tube / Mylar Tube |
| EV motor and power electronics | Polyimide Tube / Fluoropolymer Tubing |
| Temperature sensor and thermistor protection | Polyimide Tube / PEEK Tube |
| Bolt and fastener electrical isolation | Mylar Tube |
| Chemical resistant environments | PTFE / FEP / PEEK Tube |
What is the difference between a collection page and a product page?
A collection page helps compare families or processes. A concrete product page defines one product construction, its available dimensions, applications, limitations, quality controls and RFQ fields. Use the concrete page when preparing a drawing review or quotation.
Can I request a tube without a complete drawing?
Yes. Send the component OD or required tube ID, wall, length, operating conditions, quantity and a photo. WELLELE can propose the missing review items, but production dimensions and acceptance criteria must be agreed before volume manufacturing.
Are all listed sizes available in every material?
No. Size capability changes with material, process, wall, tolerance, length and packaging. The ranges on product pages are engineering capability ranges; the exact combination must be confirmed during quotation
Engineering recommendation
Select tubing products from the complete component dimensions, operating conditions, manufacturing process and acceptance criteria. Use samples to confirm fit and function before volume production
What is the best tubing material for electrical insulation?
The best material depends on temperature, voltage, flexibility and mechanical requirements. Polyimide, Nomex and Mylar are commonly selected for electrical insulation applications
What information should engineers provide when requesting tubing?
Recommended information includes material requirement, inner diameter, outer diameter, wall thickness, temperature condition, application and quantity.



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