Old Paint

That sounds like a lot of paint to be discarding if it still is good enough to run through the airbrush. If drying is a problem, try adding a few drops of lacquer thinner (don't worry, there is no compatability problem here). I do this to speed up the dry time with Model Master and Floquil enamels regularly. Mix your bottles of old paint well with a stir stcik and then agitate for a few minutes. I use an old vibrating sander and hold it so that it raps the side of the bottle.

Thanks for the reply, I'll give the lacquer thinner a go. Yes it is alot of paint. Back then I paid $1.49 a bottle, now I pay $2.50. Thanks again.