Now even the heaviest packages can withstand rough handling. Our Scotchî 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 donâÂÂt need layers of tape to get the job doneâÂÂjust one strip at a timeâÂÂso you save time. Your heavy packages can bear the weight and stay sealed through it...