An apparatus is described for coating a flexible substrate (1) with at least a first organic layer (2) and a first inorganic layer (4). The apparatus comprises a first and a second chamber (10, 20) and an atmosphere decoupling slot (30) between the first and the second chamber. A printing facility (40) is arranged in the first chamber (10), for printing the flexible substrate with a mixture comprising at least one precursor for a polymer, oligomer or a polymer network and a polymerization initiator. A curing facility (50) is arranged in the first chamber (10), for curing the deposited mixture, therewith forming the at least first organic layer (2). A vapor deposition facility (60) is arranged in the second chamber (20), for depositing the at least first inorganic layer (4) at the substrate (1) provided with the at least first organic layer (2). The apparatus comprises a facility (70) for guiding the flexible substrate (1) along the printing facility (40), along the curing facility (50) and via the atmosphere decoupling slot (30) along the vapor deposition facility (60).