Essential for painting metal parts: Etched, aluminum, die-cast parts, and other metal parts that enhance the texture and strength of plastic models. This is a bin type primer for painting these metal parts. Apply to the surface of the metal parts before painting. Improves the bites of paint to overcoat and prevents peeling of paint. Color is transparent. Does not melt plastic, so it is easy to apply partially with metal parts incorporated into the model. It can also be blown with an airbrush. Features a cap with brush for convenient work.