I own an (old-ish) Rema TT 06 patch kit. The contents look like this:

patch kit

Notice the blue tube-like thing under the left box. In the part list on the manufacturer's site, I couldn't find any mention of that thing (http://www.rematiptop.com/part.php?pid=56&cid=5&sid=4, which is also the source of the image).

Is is basically a short tube of mesh-like, flexible material. What is it used for?

  • If desired, I can take a picture of the thing and post it tomorrow :-)
    – anderas
    Feb 8, 2018 at 20:12
  • You say its oldish - this means the patches and vulcanising fluid may be beyond their useby date. All the other items will be okay for decades, excluding water/sweat damage.
    – Criggie
    Feb 9, 2018 at 7:06
  • 1
    @Criggie "oldish" in this case means 10 years or older. The fluid has been used up for quite some time, but with one of the patches I had trouble fixing a tube. That was about a year ago, so you are probably right. Thanks for the hint :-) (The question occurred to me when I was looking at the kit to see which stuff was still useable.)
    – anderas
    Feb 9, 2018 at 7:14

1 Answer 1


Looking at manufacturers site I found repair kit with 'mysterious' blue mesh listed as "Cartridge freeze protector".

It is supposed to be put over the cartridge (like in this picture) to prevent skin irritation/burn because CO2 gets very cold when discharged.

CO2 cartridge with freeze protector

  • Ah, I didn't think of that option! I thought it was a part like a patch that would be used (up) by the repair, not a tool simply used to repair the tube. Interesting that the manufacturer doesn't list the freeze protector in the parts list of the bike repair kit.
    – anderas
    Feb 9, 2018 at 6:46
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    @anderas might have been a later addition that was initially thought to be unnecessary. The paper packaging could have been printed up before the extra part was added.
    – Criggie
    Feb 9, 2018 at 7:05

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