I'm using an Aztec 470 (I think that's the model) with Model Master Acryl paints to do the exterior of my current project, a F-105D Thunderchief. I've set my air compressor to 20 PSI. I get my paint mixed (a light gray) for this bird's underside. I start to paint. The spray seems to be ok, but when it hits the plastic, it's as if it is not even there. I figure that I've thinned the paint too much, so I abandon that light gray for a light gull gray, this time not thinning the paint at all. Again, the coverage is so light that it has not even covered any of my puttied seams or some overspray coming out of the wheel well areas.
Anyone have any idea what may be causing this problem? These bottles of paint are new, just purchased them last week. The paint appeared to be quite thin while in the bottles, however. How does one thicken paint?