Polyken 438 Extreme Weather FSK Insulation Tape

Product number: 438

Extreme Weather FSK Insulation Tape for HVAC

Product Information:

  • Adhesive Type
  • Carrier / Support / Facestock
  • Gauge / Mil
    9.5 mil
  • OEM / Specification Body & Specification
    FAA > FAR 25.853(a)
    UL > 723 Classified
  • Operating Temp Range
    -35 to 260 °F
  • Peel Strength / Adhesion to Steel
    75 oz/in
  • Perm Rating / Permeance
    <0.02 Perms
  • Tensile Strength
    33 lb/in
  • Color(s)
    Custom Color
  • Custom color(s)
  • Product Construction
    Single-Coated Tape

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®

Regions Available

  • Global

Ideal For:

Vapor barrier seal for insulation facing. Sealing insulation and repairing in cooler/refrigeration applications.


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