Tungsten Rings Is Your Worst Enemy. 9 Ways To Defeat It > 자유게시판

8. Hypoallergenic Properties and the Critical Nickel Binder Distinction
For many individuals with metal sensitivities, the choice of a wedding rings band is often complicated by potential skin reactions, yet high-quality tungsten carbide offers a superior, hypoallergenic solution, provided consumers understand a critical distinction in its composition. Tungsten carbide itself is chemically inert and does not react with human skin. However, as noted in the manufacturing process, a binder metal is essential to hold the carbide particles together. The highest-grade tungsten rings utilize a corrosion-resistant nickel binder, and crucially, tungsten bands the nickel is molecularly locked into the tungsten carbide compound during the high-temperature sintering process. This means the nickel is not surface-exposed or leaching out, making the ring fully hypoallergenic and safe for sensitive skin. The problem arises with lower-quality, cheaper tungsten rings that often substitute cobalt for the nickel binder. While cobalt is also hard, it is notorious for wedding rings chemically bonding with the oils and moisture on the skin over time. When cobalt-bonded rings are subjected to regular wear, the cobalt can leach out and oxidize, causing a chemical reaction that results in an unsightly, tarnish-like black stain on the skin and, in some cases, a severe allergic rash. This distinction between high-grade nickel-bonded tungsten and problematic cobalt-bonded alternatives is paramount, ensuring that the wearer receives a durable ring that provides both lasting luster and enduring comfort without the risk of skin irritation or unsightly tarnishing.
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