A lot of us are using acrylic paints in our modeling. I felt we needed a central location where our various tips and techniques could go, instead of being buried in one of our build logs.   One area I see time and again is the proper thinning for airbrushing. Coming from a model railroad and aircraft background, I've seen a few different ways to deal with this. I can't reproduce this pamphlet on our site, but you can get it here.   It doesn't cost you anything to log onto the site, but