Superthane is tough stuff:

http://www.excelon.com/pdf/TPI-Superthane.v1.pdf

I use it, but Silicone is also safe for CO2.



On Tue, 03 Jun 2003 02:23:58 GMT, "WD" wrote:

I have the plain old vinyl tubing, but I know this leeches co2, I also have
some green soft tube, which I believe is silicone. Lastly, I have tubing
that is more rigid than vinyl, and has "superthane" printed along the side.
What do you suppose this last tubing variety is, and which is more reliable
for co2 use?

tia

Take the stick in the eye out to reply.