Tamiya paints

Antman,
Hi and Welcome to the forum!!!

To answer your question, NO the Tamiya acrylics don't have to be thinned.. I use them all of the time straight from the bottle and have No problems..
About the only time I have thinned the paint is if I am planning on using that color on a large area.. Thinning the paint makes it last longer.

Antman,

The only reason we thin paints is so that they can flow through the airbrush and atomize properly. If that Tamiya acrylic is spraying good for you straight out of the bottle then use it that way and forget the misinformation that those other's are giving you.
I would agree with Panther18 also in that thinning it does make it last longer.
If you get good coverage with thinning it then you may want to go that route to save paint, but that is up to you.

Mike

I agree with Mike but would also like to add that thinning allows us to paint with good coverage at much lower pressures. I paint at a pressure of less than 15 psi most of the time and I don' t think I could do that without thinning the paint.

thanks for the help guys

I've sprayed Tamiya acrylics almost exclusively since starting to airbrush, and I've thinned every time, just to be on the safe side, but the paint does appear to be more than adequately thinned to shoot straight out of the bottle.