67 B'cuda grilles are anodized aluminum. The anodizing is a harder surface that aluminum trim on the face of a vehicle needs to withstand the sandblasting it receives. Its a bright finish too. You can defeat the anodizing with oven cleaner. I think most restorers spray a coat of clear on them but I dont know how well it holds up over time. I dont put clear coat on mine. I just keep them clean and waxed. Well it aint wax, its the modern polymer stuff. I didn't bother to repaint the argent area in the recent ones. I left it all polished. If the car is ever repainted, that area will be body color. The argent was a copout in my opinion. The front trim can look more like the rear trim.
