Barracuda Duct Tapes feature our new cutting-edge technology that utilizes an advanced engineering process. Composed of a stronger heat-bonded 4-layer construction, this technology yields a superior and tougher tape that tears remarkably easy, while remaining flexible, weatherproof, and won’t delaminate over time. Designed with an advanced SmartShin backing, the adhesion is superior and longer-lasting when compared to other traditional duct tapes. FEATURES & BENEFITS: 5.5 mil thickness Silver/Blue backing Excellent for a wide range of repairs