
Metallic automotive paint finishes, around since the 1920s, became extremely popular in the U.S. during the 1960s. The then-new thermoplastic acrylic lacquers made an ideal showcase for metallic finishes as their low application viscosity allowed time for a majority of the aluminum flakes to align themselves relatively parallel to the surface before the paint began drying. This provided increased reflectivity compared to earlier efforts. The result was metallic paints with nearly the same visual appeal as todays, lacking only the extra sheen and depth of a clear top coat.
Continue reading