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# Reader challenge: 6mm flexible tubing with tight tolerance (non-medical)
- URL: https://www.plasticsiq.com/reader-challenge-6mm-flexible-tubing-with-tight-tolerance/
- Published: 2022-04-28T10:19:16.000Z
- Updated: 2026-09-21T18:03:24.000Z
- Description: Recently a reader contacted us with a challenge for an electrical application. Check out the brief below, and if you can help, reach out to the editorial team to be connected with the reader.
- Author: PlasticsIQ Staff
- Tags: Insights, Extrusion

### **When Interplas Insights readers contact us with a challenge, we endeavour to find a solution from our network. Recently a reader contacted us with a challenge for an electrical application. Check out the brief below, and if you can help, reach out to the editorial team to be connected with the reader.**

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**Background**

A reader is developing a product which features a 1 mm, multi-stranded copper wire with a jacket, giving a total diameter of 6 mm.

**Challenges**

The tubing requirements include:

- Flexible – material selection for similar products is silicone 80 Shore A;
- The tubing will be fixed belt-like around the targeted conductor, so the bend radius or the ability to wrap around is important;
- Tight extrusion tolerances: similar products have been able to accept +/- 0.2 mm, but the nature of this project calls for a much tighter specification;
- As it is not a medical application, cleanroom manufacturing (and the associated costs) are not required.

**The request**

Which manufacturing process and materials choice are best suited to the challenges mentioned above - extrusion is the likely option, but who can handle the tolerances required outside of cleanroom manufacturers? Are there other methods? And who are the recommended providers?

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#### *If you think you can assist this reader, please *contact the editorial team* to be connected.*