Pre-treatment

 

The importance of perfect cleaning cannot be over emphasized, since the efficiency of any operation depends on the adhesion of the deposited metal. Of the various processes formulated to give a clean surface suitable for plating, none is more important than the removal of grease, oil and soils left from machining, stamping, pressing or polishing. Plating on a dirty surface will result in peeling and/or blistering of the deposit.

The pre-treatment process prior to plating usually consists of hot alkaline cleaning – normally a hot soak cleaner followed by a hot electrolytic cleaner. After rinsing the articles to be plated are immersed in a dry acid salt to remove any oxide film that has formed during the cleaning stages. The articles are then rinsed again before being electroplated.

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Physical Address: 51 Milne Street, Durban 4001

Postal Address: P O Box 437, Durban 4000
Tel: +27 (31) 335 1260
Fax: +27 (31) 335 1261
info@esmowat.co.za

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