Slide fastener and method for manufacturing water stop chain

The purpose of the present invention is to suppress a decrease in water-stopping property of a slide fastener regardless of the use of a thin water-stopping film. A slide fastener according to the present invention is provided with: a pair of water-stop stringers (2m, 2n) to which a pair of coil-shaped elements (4m, 4n) are attached to opposing side edges (53) of a pair of woven and/or knitted fastener tapes (5m, 5n), and to which water-stop films (6m, 6n) are bonded to the tape upper surfaces (51) of the pair of fastener tapes via an adhesive (7); and a slider (9) that advances so as to engage the pair of coil-shaped elements and retreats so as to release the engagement. Each of the water stop films has a film end portion (65) disposed in a gap (S1) between the opposing side edge portions of the pair of fastener tapes, the film end portion is supported by a support portion (8) formed by curing an adhesive, the support portion partially occupies the gap (S1) between the opposing side edge portions of the pair