Water Activated Reinforced Kraft Paper Tape is a self-adhesive tape made of kraft paper, reinforced with glass fiber filament yarn embedded between the layers, and has a special adhesive that is activated with brushed with water. When applied to a carton, it forms a very powerful bond that is impossible to remove without completely tearing the tape or damaging it. Extra strong fiberglass yarns within the tapes are bonded between the high-tensile strength sheets for an extra margin of strength.