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Hello,

>>CO2 will combine with moisture from sweat to form carbonic acid.  This
will
>>eat your thinsulate and cause irritation to your skin.

Did someone actually experienced this ? I'd love to hear first hand story.
May be I'll try myself.
As far as I know:
- Carbonic acid (H2CO3) is one of the weakest acids and it is quickly
decomposed to H2O and CO2.
- Gas in your suit is very dry which will cause that your skin is quicky
dried when sweated.
- Water vapour condenses on place with highest temperature gradient - which
is shell of suit, not the skin
- We actually like to drink this acid which is in any soft drink which is
carbonated and it didn't burn our throat
So I'm not sure if acid is the cause why CO2 is not widely used.


Regards

  Jozef Gliviak
  Slovakia

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