Titanium (Ti), sometimes called the “space age metal”, has a low density and is a strong, lustrous, corrosion-resistant metal with a silver color. Titanium can be alloyed with iron, aluminum, vanadium, molybdenum, among other elements, to produce strong lightweight alloys for aerospace (jet engines, missiles, and spacecraft), automotive, medical prostheses, orthopedic implants, dental implants, sporting goods, jewelry, mobile phones, and other applications. Titanium was discovered in England by William Gregor in 1791 and named by Martin Heinrich Klaproth for the Titans of Greek mythology.

The colors are achieved on these metals by passing varying electrical currents through them, creating oxide layers of various thicknesses that reflect and absorb different waves of light. This is how the rainbow of colors is achieved, it is not paint nor a dye. This same oxide layer seals the metal, and is very strong and durable. This tough oxide layer makes these some of the most hypoallergenic metals in the world. People that can have reactions to silver or other metals commonly will experience no such reactions with Niobium and Titanium. Below are some photos of the workshop process.

The anodizer unit itself.

The brushes I use for 'painting' with electricity, with metal contacts soldered to the brush ferrule, then covered with insulating tubing.