J.V. Converting BOOK-20CC/CLR272 JVCC BOOK-20CC Crystal Book Repair Tape: 2" x 72 yd, Clear Core: 3 inch diameter Backing/carrier: polypropylene film Adhesive: solvent-based acrylic adhesive Thickness: 2 mils (carrier, adhesive) 1.1 mils (carrier) Adhesion: 23 ounces per inch (to stainless steel test panel)