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Hubbard-Hall’s Black Magic SS-C is a free-flowing, dust-free granular composition for use in water, giving a deep black colour to cast and sheet stainless steel. Black Magic SS-C oxidising salts are used as a super-saturated solution, effective in a temperature range of between 121-127C. Because it is important to maintain temperature to ensure a uniform and high quality finish, an automatic temperature controller should be utilised in the process. To achieve the required finish, surface preparation is most important. If a superior quality of finish is required, then Activated Black Magic Plus is recommended. Tanks should be constructed of mild steel, with acid pickling tanks of plastic, rubber-lined steel or rigid polypropylene. A comprehensive list of recommended equipment and materials is available upon request.