The seal is the point. Gummed paper tape penetrates the board and becomes part of it, so tampering shows and the carton holds under weight that peels a plastic tape. It also goes into paper recycling with the box. The trade-off is the dispenser, which is a machine rather than a hand tool and needs water and maintenance. See packing tape, tape dispensers and cartons.

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Better Pack Water Activated Tape Dispensers

Shop Better Pack water activated tape dispensers and tape machines for packing, shipping and dispatch.