Now even the heaviest packages can withstand rough handling. 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 adhesive locks in your heavy duty contents and locks out everything else. This premium quality tape provides excellent holding power for heavy-duty packaging, shipping and moving. 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.