Description
Product Description
Polyken 335FT is a high-temperature aluminum foil flue tape designed for sealing seams and closures in high-heat flue/vent applications, including high-efficiency furnace installations with certified plastic vent pipes. It uses an extreme-temperature acrylic adhesive for strong “quick stick” sealing, and a 1.75 mil foil backing that provides excellent conformability. Built to handle harsh environments, it resists UV, mold, and moisture and performs from -50°F to 500°F. It’s also low odor with low VOC (<30 g/L) and is tested in accordance with UL 723.
Key features
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High temperature performance: -50°F to 500°F operating range
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Extreme-temperature acrylic adhesive with quick stick for instant sealing
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1.75 mil aluminum foil backing for conformability
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Resists UV, mold, and moisture
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Low odor, Low VOC (<30 g/L)
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UL 723 tested (flame spread/smoke developed values listed)
Prodcuct Specifications
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Product: Polyken 335FT High Temperature Flue Tape
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Backing: Aluminum foil (1.75 mil)
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Adhesive: Acrylic
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Liner: Kraft paper
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Total thickness: 3.8 mil (0.097 mm)
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Adhesion to steel: 35 oz/in (3.83 N/cm)
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Tensile strength: 14 lb/in (24.52 N/cm)
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Minimum install temperature: -5°F (-20°C)
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Operating temperature: -50°F to 500°F (-46°C to 260°C)
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VOC content: <30 g/L
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UL 723 values listed: Smoke Developed <50, Flame Spread <25
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Standard sizes: 48mm x 46m, 72mm x 46m
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Shelf life: 36 months (stored at 25°C; recommended storage 60–80°F, 40–60% RH)