3M Ultra-Thin Water Contact Indicator Tape 5559, printable and die-cuttable for label and identification applications, can be used in hand held devices such as cell phones, PDA's, pagers, MP3 palyers, game players, CD players, cordless phones, two-way radios, laptops, digital or film cameras, video cameras, etc., thin caliper suitable for tight design tolerances

3M Ultra-Thin Water Contact Indicator Tape 5559, 5.0 mil (0.127 mm) printable, self-adhesive, shows indication when contacted by water, when water comes in contact with the edges of the tape, the color changes from white to red