Pressure-sensitive tapes are usually petroleum-based and consist of a film with a tacky substance that adheres to the intended surface when pressure is applied. They are usually applied with a hand-held tape gun or an automatic case sealer. One of the most common PSA tapes is polypropylene tape, which is usually the preferred option for quick and easy sealing of corrugated cartons. Another possibility is PVC tape, which is a high-end option.
Water-activated tapes are largely made from Kraft paper tape, either white or natural in color with a starch-based adhesive. The tape comes in different grades and lengths and often has fiberglass thread reinforcement. This kind of tape requires water to activate the adhesive as pressure alone will not suffice. It also requires a water activated-tape dispenser that will automatically moisten and cut the tape.