Help finding the right material for non-conductive tubing

[Eitanburg]

TL;DR Summary

Hi, I need a tube that will be shatter proof, non conductive for electricity and be a good heat insulator, it need to be rigid and sustained high temperature (~250 c°)

Hi, I need a tube that will be shatter proof, non conductive for electricity and be a good heat insulator, it need to be rigid and sustained high temperature (~250 c°)

 

[Bystander]

For...?

 

[Eitanburg]

Replace a glass tube around the heating element of a vaporizer

 

[Bystander]

heating element of a vaporizer

Commercial/industrial/household?

 

[Baluncore]

Welcome to PF.

Maybe you can machine the tube from a ceramic foam.
Alternatively, wind the heating coil onto a mandrel, then plaster it with an expanding foam, then remove the mandrel.

 

[Eitanburg]

Commercial portable vaporizer, the heating element is similar to a car cigarette lighter

 

[Rive]

Honestly, if that glass tube is the right kind of glass then it should be able to bear anything what that PCB can. If it shatters or cracks then it's more likely a mounting (or something with the uneven/too fast heating) than material problem.

Are you are thinking about precautions or usage out of the original environment?

 

[Tom.G]

Two glassy materials come to mind, Pyrex and Gorilla Glass.
Pyrex is used in cookware that goes into the kitchen oven, and Gorilla Glass is that tough glass used to cover the screens of cell phones.

Both are made by Corning Glass, https://www.corning.com

From your photo, a Pyrex test tube or graduated cylinder cut down to size may do the trick. (I don't know about the shatter resistance though.)

Cheers,
Tom