Transparent Film Tape for Color Coding Scotch® Color Coding Tape 690 is a 2. 3 mil (0. 058 mm) thick colored tape with a high strength natural rubber adhesive used for color coding and bag sealing. The tape removes cleanly and boasts long aging and premium performance. The UPVC backing material is moisture and chemical resistant. It boasts excellent handling, is hand-tearable and long aging. It can be applied by hand or with the P-400 or P-410 dispensers.