J.V. Converting BST-22/CLR038180 JVCC BST-22 Bag Sealing Tape: 3/8" x 180 yd, Clear Backing/carrier: unplasticized polyvinyl chloride film (upvc) Thickness: 2.2 mils (carrier, adhesive) Adhesion: 15 ounces per inch (to stainless steel test panel) Adhesive: solvent based natural rubber Core: 3 inch