Patination is artificial aging of the surface and coating with usage of special materials, paints and varnishes. This technology gives the doors elegance and nobility. It emphasizes the beauty of the forms, relief and texture of the door panels.
Applied patina has darkening effect that is used mainly for decoration of door panels. Slight differences of colors and possible differences in tones are not defects. The patina is applied by hand by Steel Line masters and is deliberately non-ideal.
Such imperfection allows for uniqueness of each front door made by Steel Line factory.