3M General-Purpose Vinyl Tape 764 - 36 yd Length x 1" Width x 5 mil Thickness - Blue - Rubber - 4 mil - Polyvinyl Chloride (PVC) Backing - 1 Roll General-purpose Vinyl Tape 764 can be used in noncritical applications such as color-coding; bundling and safety marking; temporary marking of parts or machines; and protecting parts, equipment or products from abrasion. The noncorrosive, abrasion- tape is conformable to contours, moisture- and wear-. It is easy to apply. Brightly colored tape features a vinyl backing, rubber adhesive and good instant adhesion. It should not be used for electrical applications.