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E-Coat (Electrophoretic Coating)

Supplier: A Class Metal Finishers

E-coat is short for "Electrophoretic Coating". The version of this process used by A Class is organically based polyurethane. The coating is electrolytically applied and requires oven curing. The primary purpose of our E-coat plant is to provide customers alternatives in combination with other coatings and treatments we supply.

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Benefits of Electrophoretic Coating: A clear E-coat over finishes prone to tarnish such as brass, copper or silver, provides a lasting gleam that requires very little maintenance to stay looking great. The coating can also be applied directly over polished brass or copper substrates (i.e with no need to plate first). E-coat can be used over gold plating to prevent the gold (a very 'soft' coating) from wearing and maintain the bright gold look for a much longer time. E-coat is extremely hard wearing and will resist UV breakdown for a far longer period than other clear coatings.

Colour & Aesthetics: E-coat is available in 'clear' and a range of colours. Currently A-Class supplies only the clear version and a combination black/clear coating. The clear E-coat is quite transparent though depending on curing time and temperature can have a slightly yellow tinge to it. Unlike a clear powder coat, there is less 'orange peel effect' (dimpled surface).

Applications of Electrophoretic Coating: Gold plated architectural accessories in high wear areas - e.g. tapware; silver plated ornaments or tableware (excl hot food preparation items); any metal items requiring protection of the surface from tarnish. For customers seeking a high quality black finish that will stand up to the elements or heavy wear, a great alternative to paint or powder coating can be achieved through use of clear E- coat over an application of oxidised black.

Substrates suited to this coating: Can be applied over most metal substrates.

Design Cautions: As this is an electrolytic process it is necessary to use jigging, racking or wiring to provide for electrical current conductivity. There can be difficulties using this coating for items shaped such that liquid can not freely drain, e.g. deep, narrow recess areas. Please consult your plating adviser prior to finalising design if you intend using this finishing process in your product manufacture.

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