Deposition of sealant or similar materials

An applicator 1 is provided for the deposition of sealant onto a surface of a workpiece. The applicator comprises at least one inlet 2, 3, 4 for depositing sealant on to a surface or a nozzle-receiving space for receiving a nozzle comprising at least one inlet for depositing sealant on to a surface. There is at least one sealant-contacting surface 5, 6, 7 for contacting sealant deposited onto the surface through the inlet as the applicator is moved across said surface, thereby forming a film of sealant on said surface. There is at least one spacer 8a, b, c, 9a, b, c for contacting a surface onto which sealant is to be deposited and for maintaining the sealant-contacting surface in spaced relationship with the surface. The applicator is configured to facilitate the formation of films of different widths.