Despite being a mature technology, continuous progress is being made on porcelain enamels. RoHS-compliant single coat colours are available for aluminium and aluminised steel. New uses are being found for low-temperature enamels such as coating cast aluminium pan supports. Also in pan supports, electrophoretic enamelling has been developed to obtain excellent coverage and surface colours as matte black and single-coat colours are also being used. For sheet steel, ground coats requiring only alkaline degreasing offer an economical, environmentally friendly metal pre-treatment. The steel can then be coated in mass in a very cost competitive manor with high flow coaters for wet enamels or no-transfer electrostatic powder porcelain lines. Overall, porcelain enamel continues to be economical, durable, and environmentally friendly.
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