Enameling: Why and when?

Vitreous enameling is one of the best and longer lasting protections against corrosion. It is widely used for the coating of cooking pots, electric water heaters and a range of different products. With enamel being fragile and shock-sensitive, the entire enameling process must be performed correctly and in a controlled manner. Perfect and uniform surface treatment prior to enameling plays a crucial role.

 

Porcelain enamel is a borosilicate glass layer, which has been fused on steel, stainless steel, aluminium, copper pots, boilers, heaters, and a variety of other surfaces.

Enameling has been adopted by many different industries worldwide and is used for a wide range of products, such as architectural panels, bathtubs, barbeques, boilers, chemical vessels, cookers, heat-exchange panels and tubes, hollowware, microwave ovens, street signs, water heaters, washing machines, etc.

The Enamel coating application on basic metal material can be performed in various ways after blasting, such as dry electrostatic powder enameling, wet enamel spraying, or dipping or pouring parts in the liquid enamel. After coating, the applied enamel layer gradually dries and vitrifies (turns into glass) at high temperatures (over 850°C).

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Did you know that only enameled boilers satisfy all hygienic and medical standards?

Let’s take a look into the procedure of internal boiler enameling:

As said, prior to sandblasting, the surface must be degreased. By sandblasting the surface, the perfect surface roughness is easily achieved, which is of paramount importance when it comes to enamel adhesion. It’s usually a relatively quick process, as we only need to impact small craters to the surface to roughen it up. Longer sandblasting results in a smoother finish that looks better and cleaner, but doesn’t offer as much adhesion for the enamel.

It is well known that using a powder enameling process paired with the correct mechanical surface preparation offers the best results, while also providing the following benefits:
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Enameling & Coating solutions

Good is never enough – we strive for excellence. FerroEcoBlast Europe’s superiority in the field of Enamelling lies in providing you with the best solutions for pre-treatment and also Enamel coating systems that will save you money. Our goal is to exceed expectations and continuously search for possible improvements to our system with custom-made solutions.

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