This heavy-duty aluminum foil tape is designed to lock in the integrity of your ductwork, ensuring optimal performance and energy efficiency. With a strong adhesive, it creates a secure bond that seals air leaks and prevents moisture from seeping through. Whether you're working on HVAC systems, dryer vents, or any metal or plastic joint, this tape is built to last and perform in tough conditions.

At 3.9mil thickness, it's the ideal balance between flexibility and durability—neither too thin to tear nor too thick to manage in tight spaces. Its heat resistance up to 120°C (long-term) and 350°C (short-term) makes it perfect for high-temperature environments, while being waterproof and moisture-resistant ensures reliable sealing even in the toughest conditions.