Scotch book tape 845 a tough crystal-clear transparent tape with a long-aging, synthetic adhesive that conforms readily to book contours and flexes with cover movements | Transparent polypropylene backing | Tough, flexible, resists abrasion and cracking, conformable | Synthetic adhesive | Excellent for repairing, reinforcing, protecting and covering bound edges and surfaces | Use on books, magazines, pamphlets, record album jackets and more