For decades, silver-plated wire-wrap wire connections have been used successfully. In most, but not all, applications, it is highly reliable. In an active sulfur environment, such as might be found in portions of oil refineries and paper mills, silver-plated wire-wrap wire connections deteriorate extremely fast. The morphology and the kinetics of this deleterious reaction are discussed and alternative wire-wrap wire platings are examined. The discussion will show that tin-plated wire-wrap wire is not an acceptable alternative, but acceptable alternatives to silver do exist.

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