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	WetStop® press fasteners DUP 4 and DUP 6 FlexFix® system Fields of application • Recommended for use with all conventional laminates,   membranes or combinations of fabrics to meet   the highest demands for quality in terms of function   and reliability. • Especially suitable for very high 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 • Self-centering, smooth-operating and reliable closure • 50,000 opening and closing cycles (tested according to YSFG WN 17.37)   without any appreciable wear in the functional parts (constant closure) • 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.