Verdigris is a painting technique which ends in a vintage look of green patina on copper, bronze or copper. The natural patina types from oxidization when the metals are exposed to air and other exterior components as time passes, but you can create the antique finish in a matter of hours.
Cover the work surface with newspaper to protect the surface in paint. Place the terra-cotta pot on the table and then wipe it down with a moist cloth to remove any dirt or debris.
Ventilate the area. Paint the exterior of the pot with black acrylic paint to create a base coat to the verdigris finish. Permit the paint to completely dry.
Cover the pot with bronze or copper acrylic paint. Allow the paint to dry. Use a thick craft paintbrush to dab dark-green paint over the pot to create a stippled effect for texture. Dab a clean cloth over the surface to further enhance the stippled look. Allow the green paint dry thoroughly.
Paint the pot with light-blue or turquoise acrylic paint using random brushstrokes to craft a realistic appearance. Dab at the most recent layer of paint with another clean cloth to reveal some of the bronze or copper colour underneath.
Slim white acrylic paint having 30-percent water to create a slightly transparent look. Brush the white paint on the pot in random strokes and let it dry completely. Rub a tidy kitchen scrub pad gently over the white paint to reveal a number of the other colors below to get a multidimensional look.
Employ a transparent acrylic sealer spray over the dry paint to guard the verdigris finish in the elements.