Now even the heaviest packages can withstand rough handling. Our Scotch® Heavy Duty Shipping Packaging Tape holds strong on all box types, including 100% recycled boxes. It's even guaranteed to stay sealed.* The strong, tough, solvent-free hot melt adhesive locks in your heavy duty contents and locks out everything else. You don’t need layers of tape to get the job done—just one strip at a time—so you save time. Your heavy packages can bear the weight and stay sealed through it all with Scotch® Heavy Duty packaging tape.