[roger1]

I was Googling and ran across this and it looks really interesting:
Duratec Airline System

I registered on the IPEX web site and downloaded the Technical Manual and posted it here:
http://home.austin.rr.com/ls1/Durate...cal_Manual.pdf

I also downloaded their price sheet and it stated the following:

3/8 inch is $78 per 100ft roll, 1/2 inch is $98 and 3/4" is $150. The fittings aren't real cheap but I don't think the average garage would need that many fittings.

The only negative that I can see compared to copper or steel pipe would be that it probably doesn't dissipate heat as well. The plastic sleeves are thin so it's bound to dissipate heat better than PVC . However, if you are building an air system with a dryer or a cooling chamber, this might not be a big issue. I like the idea of a chamber anyway as the air velocity slows down at the chamber allowing condensed water to fall to the bottom.

The fact that you can bend this stuff with your hands would make it really easy to install. (Tight bends can be done with a tubing bender.)

[MARTINSR]

I'm sorry Roger that stuff may be the cats meow for running air and NOS lines in your dentist office but it is NOT for the bodyshop. I recommend to stick with galvanized pipe.

Brian