Roller coaters are well known in the industry for its cost efficiency for mass production on flat surfaces.
It is common to apply any sort of paint, solvet- or water based, clear or pigmented, stains or oils, as long as they are roller coatable.
Latest developments on application rollers show that it is possible now to apply paints on profiled surfaces also.
The attached video shows a roller application on a profiled surfaces of an interior door.
Workpiece: interior door, raw
Workpiece thickness: 38 mm
Maximum deepening: 11 mm
Line speed: 10 m/min
Paint Mount: 28 g/m², wet
Material : UV 100 %, primer