Subzero Tubing

[Audherbagn]

Does anyone know of a 3/8" - 1/2" (10-13mm) soft tubing that can stand up to subzero temperatures (only needs to be for a couple hours max)

[Technous285]

The PrimoChill PrimoFlex stuff I bought under the EK branding, both in 10/13mm & 13/19mm, have survived Rural NSW (Australia) winters where we get between neg-5°C & neg-10°C fairly regularly overnight during bitter winters here.

Mind you what I'm personally more worried about is keeping the coolant (currently EK/Mayhem Pastel Lime Green) warm so it doesn't run the risk of freezing in-tube and bursting fittings, so I keep my system running even if it's otherwise idling overnight to keep heat in the coolant to keep it safe and fluid.

[SolarNova]

Depends on how cold you talking. If its only going to something like -1c to -10c for short periods , then normal PrimoFlex tubing should be ok. if you want to test just get a small length of it and shove it in your freezer.

If we're talking -30c, then i dont know of anythign that i would consider safe that is flexiible. Hence why when i build my subzero liquid system(-40c target liquid temp) ill be using Borosilicate glass tubing which has high thermal shock resistance and wont go brittle like plastics/rubbers do.