Polyken 1283420 340X Utility Extreme Weather Aluminum Foil Tape 48mm x 46m 3 mil

The Polyken 340X Utility Extreme Weather Foil Tape (MPN: 1283420) is a professional-grade, 3 mil aluminum foil tape engineered for demanding sealing and repair applications in extreme environmental conditions. With a conformable 1.5 mil aluminum foil backing and an aggressive high-tack acrylic adhesive, this tape bonds reliably to a wide range of surfaces including metal, foil-faced insulation, and rigid ductwork.

Key Features:

• Dimensions: 48 mm wide × 46 m long (approximately 1.89 in × 150 ft)
• Total thickness: 3 mil for durable, long-lasting performance
• Temperature range: -35°F to 260°F for use in both cold and high-heat environments
• Tensile strength: 11 lb/in for reliable holding power
• Adhesion to steel: 45 oz/in high-tack bond
• Construction: Aluminum foil face, acrylic adhesive, paper liner
• Resistance: UV, moisture, and mold resistant for long-term exterior and interior durability
• Low-odor acrylic adhesive with low VOC content
• Conformable backing accommodates curves, corners, and irregular surfaces

Common Applications:

• Joint sealing in HVAC ductwork for air conditioning, heating, and ventilation systems
• Insulation seaming and patching
• Cooler and refrigeration unit repair
• General-purpose sealing and weatherproofing repair
• Aerospace masking and sealing of canopies, windshields, and window surfaces

The Polyken 340X is a trusted solution for contractors, maintenance professionals, and industrial users who require a reliable foil tape that performs across a wide temperature range and resists UV degradation, moisture infiltration, and mold growth.