A decor paper impregnated with resin and pressed onto the panel. It is the most widespread finish, and for good reasons: it is consistent from door to door, easy to clean, and priced so you can fit out a whole home without painful trade-offs.
Six decors held in regular production, referenced M-101 to M-106. Its limits: it marks on a corner impact and cannot be repaired. On a bedroom door that almost never happens; in a hotel corridor where trolleys pass, it is another story.