The 3m TM water contact indicator tape 5558 is an ultra-thin, 6.0-mil (152-micron) thick piece of tape used to indicate water contact. After the tape changes from white to red, it comes into direct contact with water.

　　Printing by heat transfer, flexo and screen printing methods. Provides improved ink absorption during treatment to provide protection from contamination and moisture on the back of the paper with high water absorption, water transportation to indicate the very high bonding strength of the acrylic adhesive to the most surface, including low surface energy plastics, such as polypropylene and powder coatings on the overall structure of the Rotary die head can cut diluents to make the ultra-thin electronic device design.