EMK - Allstedt

Enamelling

Why Enamel?

Enamel is a composite material made from metal and glass. Therefore, it has unbeatable qualities: it is wear and abrasion resistant, non-corroding and weatherproof, acid and heat resistant, lightfast and as a result, it does not show any ageing process. Because of that, we produce equipment for the supply of drinking water, the food industry and pharmaceutical industry and for other applications in which another surface protection would fail. Apart from that, it even looks good through its vivid matt or shiny colours.

Enamel Blade

slider DN 300 internally and externally glass-lined
used for 17 years in the landscape Kremper Marsch
valuation of soil: -22 until -26 (German Industrial Standard 50929), very aggressive soil, group III probability of pitting corrosion = high probability of surface corrosion = medium
the composite layer prevents rusting
a damage caused on the coating enamel did not affect the composite layer
the composite layer slows down the process of corrosion or even prevents it
the resistance of the damaged coating enamel against corrosion is much stronger than the resistance of founding
the reason is the always remaining composite layer

The advantages of the enamel-cast iron composite proceeding are based on the optimal combination of the positive qualities of both materials. Apart from its high corrosion resistance, it has other very remarkable qualities, such as hardness, wear and abrasion resistance, chemical resistance, resistance to impact, colour fastness and last but not least, its physiological and toxicological innocuousness. Because of the high burn-in temperature (760 to 800°C) an ion exchange between the iron and the enamel's adhesive oxides can take place, which means that there is not only a mechanical dovetail connection, but also an electrochemical union of both materials.

Slider DN 300 directly after its excavation

Even a broken enamel coating prevents corrosion

Surface after the removal of adhesive rust

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