Archival-Safe & Transparent: Acid-free polypropylene tape designed to protect books and documents long-term. Won’t yellow over time and maintains a clean, professional appearance on all paper surfaces Strong & Permanent Adhesive: Equipped with a pressure-sensitive acrylic adhesive for a reliable, permanent bond that holds up to repeated handling in high-traffic environments like libraries and classrooms Durable Book Reinforcement: Ideal for reinforcing spines, corners, and book covers. The strong yet flexible film conforms well to curved or flat surfaces without tearing, cracking, or peeling Smooth & Easy Application: Designed for easy unwind with minimal curl. Makes for fast and precise application—perfect for bulk repair or preservation jobs in schools, archives, and offices Cost-Effective 12-Pack: Includes 12 rolls of 3-inch wide by 15-yard long tape, providing a convenient and economical solution for large volume repairs and consistent supply management

3M Scotch 845 Book Tape is designed for reliable, long-term book and document protection. This transparent, acid-free polypropylene tape features a pressure-sensitive acrylic adhesive that provides a permanent bond, ideal for reinforcing book spines, corners, covers, and paper edges. It is archival-safe and resists yellowing, ensuring clean, professional-looking repairs that last. Each roll is 3 inches wide by 15 yards long and unwinds smoothly for easy, efficient application with minimal curl. Whether used in schools, libraries, or preservation offices, this heavy-duty tape is a trusted choice for high-volume use. This package includes 12 rolls, offering a cost-effective solution for consistent repair and reinforcement projects.