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. Provides excellent holding power for heavy-duty packaging and shipping Strong seal on all box types, including hard-to-stick-to 100% recycled boxes Strong, durable solvent-free hot melt adhesive seals and protects Release coating makes unwind easy Clear backing and instant adhesion Seals seams with one strip so boxes stay closed Heavy duty seal, even through rough handling