Coil-coated thin strip is a composite material consisting of uncoated or hot-dip or electrolytically galvanised thin strip and an organic coating, for example in the form of enamel or foil. The special features are corrosion-resistance, formability and a decorative appearance.
The input material (thin sheet in coils) is cleaned and chemically pre-treated. Organic coating materials are applied using a so-called coater, and then dried or cured in a flotation furnace. Coating with plastic foil, using lamination, is another possibility.
Organically coated strip is produced in thicknesses of 0.40 to approx. 2.0 millimetres and widths of up to 1,850 millimetres. Depending on the coating material, layer thicknesses of between 3 and 200 micrometres can be adjusted.
Lines for organic coating can achieve plant speeds of up to 150 metres per minute and, depending on the product mix, have capacities of up to 220,000 tonnes per year.