Technology

duct tape

A high-tensile, waterproof adhesive tape originally engineered for sealing ammunition boxes and now the global standard for rapid field repairs.

Engineered by Johnson & Johnson in 1942 for the U.S. military, duct tape utilizes a three-layer construction: a polyethylene top coat for moisture resistance, a high-strength fabric mesh (scrim) for tensile integrity, and a thick rubber-based adhesive for aggressive surface bonding. It delivers a typical tensile strength of 20 to 30 pounds per inch and operates effectively in temperatures ranging from 20 to 200 degrees Fahrenheit. Beyond its namesake HVAC applications, the material is essential in aerospace (Apollo 13 CO2 scrubber repair), automotive recovery, and emergency medical stabilization. It remains the most versatile tool in any operator's kit due to its hand-tearable convenience and reliable shear strength.