Next, I tried the top piece in Aluminium straight from the bottle. It didn’t spray quite as easily, but it didn’t seem any different once dry. I also tried making a wash and spraying a narrow line and both seemed to work satisfactorily. The lower piece is Brass (No. ATOM-20173) thinned at about 2:1 with isopropyl alcohol. Again, it sprayed out well, covered in about two medium coats, and dried with the same slightly grainy texture.