Technical Data August 2019 3M Water Contact Indicator Tape 5558 Product Description 3M Water Contact Indicator Tape 5558 is an ultra-thin 6.0 mil (152 micron) thick tape that changes color from white to red upon contact with water. It is designed to withstand heat and humidity aging without giving water indications. The tape permanently changes from white to red upon direct water contact. Key Features Highly absorbent, paper backing to transport water to show indication Does not falsely indicate water contact in high humidity exposures Performance not degraded by high humidity exposure Printable top layer by thermal transfer, flexographic or screen-printing methods Easily die cuttable with rotary die cutting process Very high bond strength adhesive, bonds to most surfaces, including low surface energy plastics Thin construction Product Construction/Material Description PET Top Film permanent Absorbent indicator layer High performance acrylic adhesive PET release liner (removable) Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. 3M Water Contact Indicator Tape 5558 Property Value Color White (top)/Red (bottom) Top film Polyester Adhesive Acrylic Backing Film/Paper Laminate Thickness 6 mils (0.152 mm) Standard Roll Length 180 yards Applications Use in water contact indicator in handheld or portable electronic devices. Smart phones, tablets laptop computers and keyboards. Wearable electronic devices Gaming and MP3 player Two-way radios Digital cameras Li-MH Batteries and chargers Ultra-thin caliper, 6.0 mils total, is suitable for application with tight design tolerances 3M Water Contact Indicator Tape 5558 Application Techniques Tape maybe die cut using rotary die cutting process Substrate should be smooth, clean, dry and oil-free to ensure good wet-out and adequate adhesion. Adhesive should not be applied at temperature lower than 10C (50F) Maximum roll width: 12 Temperature resistance is -40 to 65C for days /weeks or 121C for minutes to hours. Typical Physical Properties and Performance Characteristics Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Final product specifications and testing methods will be outlined in the products Certificate of Analysis (COA) that is shipped with the commercialized product. 3M Water Contact Indicator Tape 5558 Property Method* Value Adhesion to Stainless Steel: ASTM D-3330 0.39 N/mm (36 oz/in) 90 Peel Adhesion, 5 mm/sec peel rate, (12 inch/min), 15 min dwell time** Adhesion to Stainless Steel: ASTM D-3330 0.51 N/mm (47 oz/in) 90 Peel Adhesion, 5 mm/sec peel rate, 72-hr dwell time** Adhesion to Polycarbonate: ASTM D-3330 0.47 N/mm (43 oz/in) 90 Peel Adhesion, 5 mm/sec peel rate, 72-hr dwell time** Tape Thickness ASTM D-3652 0.152 mm (6.0mil) Release liner Thickness ASTM D-3652 0.051 mm (2.0mil) *Methods listed as ASTM are tested in accordance with the ASTM method note **The Adhesion data was generated using a 2-mil aluminum foil as a supplemental backing. Indication Properties t = 0 sec t = 5 sec t = 60 sec 1 drop of water placed at edge of diameter circle t = 0 sec. Storage and Shelf Life The shelf life of 3M Water Contact Indicator Tape 5558 is 18 months from the date of manufacture when stored in the original packaging materials and stored at 21C (70F) and 50% relative humidity. Certificate of Analysis (COA) The 3M Certificate of Analysis (COA) for this product is established when the product is commercially available from 3M. The commercially available product will have a COA specification established. The COA contains the 3M specifications and test methods for the products performance limits that the product will be supplied against. The 3M