A die for hydraulically extruding a laminarized polymeric ribbon (16, 17) of film onto the painted surface of an article of manufacture, comprising: a first die block having an interior surface with a straight, elongate gallery groove formed therein adjacent and parallel to the bottom edge; a second die block having an interior surface with a bottom edge and a straight, elongate gallery groove formed therein adjacent and parallel to the bottom edge; a spacer disposed between the first and second die blocks (23, 28); said spacer having a cutout; the first and second blocks being joined with gallery grooves therein in registry and the spacer disposed between said interior surfaces; said spacer cutout being located relative to said gallery grooves (38, 50) to create an open volume between the registered gallery grooves to receive film-forming material from an inlet, said spacer cutout defining a slot-like material discharge outlet through which an undivided ribbon (16, 17) of film-forming material can be hydraulically discharged at a predetermined rate; and a material inlet for admitting film-forming polymeric material in emulsion form to said open volume formed by said spacer cutout and gallery grooves (38, 50), wherein the edge surface of the spacer cutout is flared at the opposite sides thereof and has rounded corners to cause the extruded film to flare slightly outwardly during emission, and wherein the elongated gallery groove in the first die block is made of a cross-leg fed with material coming from the material inlet via diverging legs (34, 36), the cross-leg and the diverging legs being machined in the first die block, all with the same depth. a first die block having an interior surface with a straight, elongate gallery groove formed therein adjacent and parallel to the bottom edge; a second die block having an interior surface with a bottom edge and a straight, elongate gallery groove formed therein adjacent and parallel to the bottom edge; a spacer disposed between the first and second die blocks (23, 28); said spacer having a cutout; the first and second blocks being joined with gallery grooves therein in registry and the spacer disposed between said interior surfaces; said spacer cutout being located relative to said gallery grooves (38, 50) to create an open volume between the registered gallery grooves to receive film-forming material from an inlet, said spacer cutout defining a slot-like material discharge outlet through which an undivided ribbon (16, 17) of film-forming material can be hydraulically discharged at a predetermined rate; and a material inlet for admitting film-forming polymeric material in emulsion form to said open volume formed by said spacer cutout and gallery grooves (38, 50), wherein the edge surface of the spacer cutout is flared at the opposite sides thereof and has rounded corners to cause the extruded film to flare slightly outwardly during emission, and wherein the elongated gallery groove in the first die block is made of a cross-leg fed with material coming from the material inlet via diverging legs (34, 36), the cross-leg and the diverging legs being machined in the first die block, all with the same depth.