Polyken 438 Extreme Weather FSK Insulation Tape

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    Polyken 438 Extreme Weather FSK Insulation Tape

    UL 723 Classified (�??????????�?????????�????????�???????�??????�?????�????�???�??�?�¢?�??????????�?????????�????????�???????�??????�?????�????�???�??�?�¤ 72mm); Meets FAR 25.853(a)

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    Global

    Meta Description
    Polyken 438 FSK insulation tape designed for extreme-weather HVAC sealing and vapour barrier applications. Get a sample.
    Standardized Name
    Polyken 438 Extreme Weather FSK Insulation Tape
    Berry Global EntityHHS Tape
    Products
    • Tapes & Adhesives
      • HVAC Tape
        • Insulation Sealing Tape
          • General Patch & Repair Tape
          • Industrial Tape
            • Foil Tape
          Brands
          • HHS
            • Polyken
            Markets
            • Building & Construction
              • Commercial Construction
                • Residential Construction
                • DIY
                  • HVAC
                  Capabilities
                  • Manufacturing
                    • Tapes Manufacturing
                      • Adhesive Coating
                        • Adhesive Formulation/Mixing
                      Country Serviced / Available In
                      • Global
                        Features / Benefits

                        Foil/Scrim/Kraft Laminate Backing

                        • High strength and tear resistant
                        • UV, moisture, and mold resistant

                        High Performance Acrylic Adhesive

                        • Low odor and low VOC content
                        • High tack, aggressive bond to surfaces
                        • Excellent performance in extreme cold or heat

                        UL 723 Classified

                        • Meets flammability requirements for use in construction and marine applications

                        Low VOC Content

                        • Can contribute toward satisfying EQ Credit 4.1 (Low Emitting Materials) under LEED®
                        End Use / Recommended Applications
                        Vapor barrier seal for insulation facing. Sealing insulation and repairing in cooler/refrigeration applications.

                        Spec

                        • Custom Color

                        + Global

                        Berry Catalog SKU
                        438
                        Sample Request AvailableNo

                        + Physical Properties

                        Product ConstructionSingle-Coated Tape
                        Color(s)Custom Color
                        Custom color(s)
                        Aluminum

                        + Packaging Data

                        Max Temp Range257-302 °F

                        + Non-Packaging Data

                        OEM / Specification Body & Specification
                        • FAA
                          • FAR 25.853(a)
                          • UL
                            • 723 Classified
                            Gauge / Mil
                            9.5 mil
                            Gauge/Thickness Range9.1 mils to 13.0 mils
                            Carrier / Support / FacestockLaminate
                            Adhesive TypeAcrylic
                            Peel Strength / Adhesion to Steel
                            75 oz/in
                            Tensile Strength
                            33 lb/in
                            Operating Temp Range
                            -35 to 260 °F
                            Perm Rating / Permeance
                            <0.02 Perms

                            + CPNA

                            Adhesive
                            Acrylic
                            Application
                            Seal and patch FSK duct boards and insulation. Provides an extra-strength seal to maintain vapor barrier integrity.
                            Brand
                            Polyken
                            Carrier
                            Foil/Tri-Directional Fiberglass/Paper
                            Construction
                            Single Coated with Liner
                            Features
                            Specially designed to meet high strength, tear resistant sealing tape requirements. Provides excellent adhesion to substrates over extreme temperature ranges.
                            Liner
                            Kraft Paper
                            • Santiago Casero
                            • Product -> Berry Global Product
                            • English
                            • Created 03 Feb 2021
                            • Modified 15 May 2026
                            • Hits 339