COLOUR COATED PRODUCTS
Colour coating of coils means continuous applying of paint to flat steel strip (rolled in a coil shape) with polyurethane
rolls using high-tech automation. Colour coated strip is continuously produced on the line as described in the below steps.
Coils are opened, top and back surfaces of the strip are cleaned (by applying a special chemical agent and rinsing it
off), chromated (an operation to increase the corrosion resistance and to enhance the paint adherence). After that the
strip passes through the oven, and the primer is applied to it (paint is applied only to top surface, while back surface
is covered with high adhesive polyurethane back coating paint). Thereafter, the strip passes through another oven.
If colour coating is requested over the primer on both sides, the paint is applied as the last layer and the strip is dried in
the furnace. Depending on the customers request, protecting film may be applied, and the colour coated strip is rolled
in a coil and packed.
