Apple Launches iPhone 7 with New "Rotational 3D Polishing"

Watch Apple chief design officer Jony Ive's video at the event that highlights a new anodized finish demonstrating a polishing called "rotational 3D polishing."

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Apple launched its new iPhone 7 in September by holding a media event that highlighted its aluminim finish, and it also spoke of a new "rotational 3D polishing" technqiue.

Apple's chief design officer Jony Ive showed a video at the Sept. 7 event that highlighted a new "jet black" anodized finish that demonstrated a polishing method called "rotational 3D polishing."

"The new jet black finish is accomplished through an innovative nine-step process of anodization and polish for a uniform, glossy finish," Apple says in a news release. "An entirely reengineered enclosure results in a water resistant iPhone offering protection like never before against spills, splashes and dust."

Wired magazine spoke with finishing expert Ted Mooney and Robert Probert, the author of Aluminum How To: The Chromatizing, Anodizing, Hard Coating Handbook, about the new process. You can read their comments HERE.

To watch a video of the finishing process by Apple, please click HERE.