Over the past few years numerous papers have been given on ELV compliant electroless nickel solutions. This paper is going to discuss two specialty electroless nickel processes, Ni-PTFE and Black EN. Electroless nickel/PTFE deposits provide a homogeneous coating with a low coefficient of friction for dry lubrication applications. Deposit properties such as rate, hardness, and PTFE content will be discussed, both in current and ELV-compliant processes, outlining the benefits of current technology and the improvements made with an ELV-compliant process. A new black electroless nickel process that has good hardness and color will be described in this paper and compared to previous published black electroless nickel process. This new process also does not use nitric acid as the blacking solution.
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