Nashua 438 Extreme Weather FSK Insulation Tape

Quick Contact Print

Nashua 438 Extreme Weather FSK Insulation Tape

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

Files

Global
Meta Description Nashua 438 FSK insulation tape engineered for extreme-weather HVAC sealing and vapour barrier performance. Get a sample.
Standardized Name	Nashua 438 Extreme Weather FSK Insulation Tape - 438
Berry Global Entity	HHS Tape
Products	Tapes & Adhesives HVAC Tape Insulation Sealing Tape General Patch & Repair Tape Industrial Tape Foil Tape
Brands	HHS Nashua
Markets	Building & Construction Commercial Construction Renovation & Restoration 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 Available	No

+ Physical Properties
Product Construction	Single-Coated Tape
Color(s)	Custom Color
Custom color(s)	Aluminum

+ Packaging Data
Max Temp Range	257-302 °F

+ Non-Packaging Data
OEM / Specification Body & Specification	FAA FAR 25.853(a) UL 723 Classified
Gauge / Mil	9.5 mil
Gauge/Thickness Range	9.1 mils to 13.0 mils
Carrier / Support / Facestock	Laminate
Adhesive Type	Acrylic
Liner Type	Paper
Peel Strength / Adhesion to Steel	75 oz/in
Tensile Strength	33 lb/in
Operating Temp Range	-35 to 260 °F
Performance Category / Characteristics	Low VOC

+ CPNA
Adhesive	Acrylic
Application Seal and patch FSK duct boards and insulation. Provides an extra-strength seal to maintain vapor barrier integrity.
Brand	Nashua Tape Products
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 14 May 2026
Hits 376