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 donejust one strip at a timeso you save time. Your heavy packages can bear the weight and stay sealed through it all with Scotch® Heavy Duty packaging tape.• Guaranteed to stay sealed.• 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.• Seals seams with one strip so boxes stay closed.• Meets U.S. Postal regulations for standard packages.