Rutile is a synthetic mineral made upprimarily of TiO2 (The two main ingredients are usually titanium and silver).Rutile is used in a variety of products, including some of the most popularwatches on the market today. It is used for dials, case backs, links, pushers,hinges, and a variety of other materials. The major benefits of rutile includeits hardness, pliability, and ductility. The combination of these traits allowsrutile to be formed into a wide range of very useful materials. The low densityof the material allows for a more flexible and pliable construct while the highconcentration of the TiO2 makes it harder and much more resistant to damage.The high level of hardness also allows the material to resist impact andcorrosion. Rutile can withstand extreme heat and cold and still maintain itshardening properties.
Rutile can be formed through aprocess called autoclave roughening or autoclave diffusion. This involvessubjecting the material to high temperatures in order to increase the relativehardness of the crystals. This process is very similar to the process thatforms diamonds, although rutile does not include diamonds. Instead, thematerial is subject to high heat and pressure and then the crystals are grown,hardened, and compressed together. The crystals then become singular units,which can be molded into many different shapes and forms.
There are two primary types of rutilethat are used for various applications. One type of rutile is blue or black incolor and sometimes includes a gold pigment. This pigment can add an elegant,reflective shine to the rule. The second primary type of rutile is white andused most often in applications where strength and durability are important.White rutile has a low melting point and is useful in applications that requirea solidifying agent. Blue Rutile has a lower melting point and can be usefulfor applications that require a low degree of hardness. Both blue and white rutileis capable of hardening at room temperature. When the metal is exposed to anatmosphere with a higher temperature, the rule begins to form a layer of oxideon the surface of the metal. This oxide is slightly harder than the originalmetal, which allows it to take the place of the original metal.
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