SP-600 - 2.4 mil Carton Sealing Tape Item Code: Type: Sold By Quantity Tapes Carton Sealing Tape Natural Rubber Description A 2.4 mil BOPP (Biaxially Oriented Polypropylene) film backing with a Natural Rubber adhesive. Natural rubber adhesive offers easy unwind with excellent adhesion to corrugated properties at varied temperatures. Stock color available: Clear.