Duct tape

Plain-English definition

Duct tape is a heavy-duty, pressure-sensitive tape backed with a woven cloth fabric and coated with a silver or black polyethylene resin. It is highly water-resistant and can be torn easily by hand.

Why it matters

Duct tape is the ultimate temporary fix. Its strong adhesive and durable backing make it ideal for patching tears in tarpaulins, temporarily holding parts together while glue dries, or binding loose items. However, knowing its limits is just as important as knowing its uses.

Common mistake

A common mistake is treating duct tape as a permanent repair or using it on actual heating ducts (where the adhesive degrades and fails under heat). Another frequent error is ignoring the adhesive residue; if left on a surface for weeks or exposed to sunlight, the adhesive will bake into the surface, leaving a stubborn, sticky mess that is very difficult to remove.