The adhesive on Sticker Mule's packaging tape is activated by water. The tape uses a water-activated adhesive that bonds quickly and securely to cardboard or corrugated box surfaces once moisture is applied to the non-printed side of the tape. Typically, activation can be done manually using a wet sponge (which is included with the tape) or a packaging tape dispenser designed for water- activated tape. This adhesive penetrates the box material, forming a strong, permanent bond that cannot be unpeeled easily, providing a reliable seal and natural tamper evidence. The tape itself is made from reinforced kraft paper with fiberglass strands for added strength and durability, designed to be eco- friendly and recyclable. This method of activation ensures a strong adhesive bond by moisture rather than pressure-sensitive adhesives used in conventional tapes. In summary, the adhesive is activated by applying water to the tape, leading to a strong, secure bond with the package surface.