This is the best clear flat coat that I have used and I have used quite a bit different clear coats during my modeling career. It is best used indoor under a controlled environment, around 15 PSI, and about a inch or two away from your project and you'll get some pretty nice results. The results are pretty much a dead flat look, which I like because I build primarily armor models. NOTE- I have only thinned this with Vallejo airbrush thinner and a few drops of their airbrush flow improver. My thinning ratio is about 50%/50%. Also, Vallejo's customer service is top notch.