I found something interesting after I posted last night on my nightly (home remodeling sucks) trip to Lowes.  There is a pressure rated hose called "fuel line."  It comes in the same ID as air line, so 1/4 3/8 and 1/2, and it is naturally black with no lettering on it.  It costs a few cents more per foot but you buy exactly what you need with some barbs and you have a air hose that you don't have to paint or tape up.  
You should be able to find it next to the brass fittings in the plumbing dept.  I would suppose Home Depot and Menards would sell similar products as would most plumbing stores or bigger hardware stores.  
It's something to look into anyway.
            
			
									
						Spraypainting Nylon Coil Pressure Hose
- williamfeldmann
 - Specialist 2

 - Posts: 216
 - Joined: Sun Sep 09, 2007 6:55 pm
 - Location: Ames. Iowa, middle of BFE
 

