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Endura®'s Ceramic Hard Coatings are created with a proprietary immersion-based spark deposition process, which transforms the outermost layer of your aluminum or magnesium substrate into a ceramic oxide. Under an applied electric waveform, the parent metal (your work piece) combines with elements in an acid-based electrolyte to form a protective layer of ceramic. These coatings encapsulate your tooling to create a highly uniform coating, which replicates all surface geometry and provides excellent resistance to wear and corrosion.