Creating a distressed or aged look in new metal sculptures adds character and a sense of history to your artwork. Here are some of the most effective techniques to achieve this effect:

1. Chemical Patinas: Apply chemical solutions like ferric chloride or liver of sulfur to create natural-looking oxidation. These react with the metal to produce verdigris, rust, or tarnish, depending on the material.

2. Acid Etching: Use diluted acids to corrode the surface slightly, creating texture and uneven coloring. Always wear protective gear and work in a well-ventilated area.

3. Dry Brush Technique: Lightly brush metallic paints or waxes over the sculpture to highlight raised areas, mimicking natural wear.

4. Salt and Vinegar Rusting: For iron or steel, a mixture of salt, vinegar, and hydrogen peroxide accelerates rust formation. Spray or brush the solution onto the metal and let it react.

5. Mechanical Distressing: Use sandpaper, wire brushes, or chisels to scratch and dent the surface, simulating years of wear and tear.

6. Heat Aging: Torch the metal to create burn marks or uneven discoloration, enhancing the aged appearance.

7. Layered Finishes: Combine multiple techniques—such as rusting, painting, and sanding—for a more complex, authentic look.

Experiment with these methods to achieve unique, time-worn effects that elevate your metal sculptures. Always test techniques on scrap metal first to perfect your approach.