Taking something made from plastic and turning it into an antiqued metallic color is a multi-layered, multi-step process. I have devised my own unique way of accomplishing the look, and I’d like to share it.
For the Steampunk Huntress Mask, I started with black ABS plastic sheet.
The first step was to establish the metallic base color, which in this case was bronze. I chose “Dazzling Metallics” bronze acrylic paint. After about 5 coats of this bronze paint, I had a good metallic base to work from, which you can see pictured on the left.
Next, I mix rubbing alcohol and black acrylic paint to make a wash. I do a quick wash over the whole piece and daub it with a rag for texture. Then, I mix some of the bronze paint into the black wash to make a dark bronze color and wash the piece again, but heavier this time. I daub away the excess paint with the rag, and the real texture starts to come through. After 1-2 more washes of dark colors, we end up with what you see pictured on the right. (the blue is masking tape to protect the clear lenses)