Introduction to PORCELAIN ENAMELLING

Porcelain enamel is a boro-silicate glass layer, which has been fused on either steel, stainless steel, aluminum or copper.

This inorganic coating was already used by the Egyptians for art and jewels around 1000 B.C. and may be characterized by a number of unique chemical and mechanical properties :

• Color stability (during many years)
• Corrosion resistance (even against boiling water !)
• Easy-to-clean
• High temperature resistance
• Scratch resistance

Enamelling has been adopted by many different industries all over the world and is nowadays used for a wide range of products, such as architectural panels, bath-tubs, barbeques, boilers, chemical vessels, cookers, heat-exchange panels & tubes, hollowware, microwave ovens, street signs, water heaters, washing machines, etc.

The application of the enamel on the base material may be performed in various ways.

Some regularly used application methods for porcelain enamel are :

• Manual or automatic dipping
• Slushing
• Flow coating
• Manual or automatic spraying
• Electrostatic wet spraying
• Electro-deposition
• Electrostatic dry powder spraying

My website will focus on electrostatic dry powder enamel application, since this technology offers many advantages to the industrial enameling industry. However, feel free to contact me in case you are more interested in other equipment and/or application methods.