Don't settle for ineffective or inadequate packaging tape when you could be using this high-quality product. Designed with a polypropylene backing reinforced with bi-directional continuous glass yarn across length and width--offering you a 150 lbs. per inch tensile strength longitudinal and 50 lbs. per inch width in cross direction. But it's not only strong, it's also resistant to nicks, abrasion, moisture and scuffing. Plus, it resists center seam splitting in both longitudinal and cross directions, offering an efficient tape performance. Tape utilizes a specially formulated rubber resin adhesive that bonds immediately and effectively and offers shear strength to metal, plastic and fiberboard. If that's not enough, the long-aging formula keeps boxes closed and doesn't require water activation.