Press fasteners Waterproof WetStop® systems · Ring spring · S spring · FlexFix® Jeans products Special closure and fastening systems Eyelets, rivets, shoe accessories Fashionable accessories Automotive Attaching machines WorkWear	Press fasteners WetStop® DUS 4 and DUS 6 S-spring system Fields of application • Can be used as the standard quality for delicate,   normal and heavy-duty support materials (laminates) • Suitable for light to medium mechanical loading of the   press fastener system Attaching instructions • The support material need not be pre-punched;   that promotes water-tightness • Specially developed processing technology needed for perfect attachment Design options • A wide variety of design options for caps: galvanic or lacquered surfaces, caps with plastic top,   die-cast zinc caps, caps in fashionable design or with custom embossing Special features • Easy-action opening and closing with double-action,S-shaped spring • Can be used for waterproof reversible garments (clothing incorporating a microfiber membrane)   when a reversing stud (double stud) is used • Central riveting You will find detailed information in our brochure entitled "Waterproof WetStop® closure systems - Selection and attaching instructions," which you can order here.