Skip to Primary Navigation Skip to Site Navigation Skip to Main Content null

3M™ FSK Facing Tape 3320 Silver, 99 mm x 45.7 m 6.7 mil, 12 rolls per case Individually Wrapped

3M ID  70006435443    UPC#  00051115315329    3M Product Number  3320     
3M™ FSK Facing Tape 3320 Silver, 99 mm x 45.7 m 6.7 mil
3M™ FSK Facing Tape 3320 Silver, 99 mm x 45.7 m 6.7 mil
3M™ FSK Facing Tape 3320 Silver, 99 mm x 45.7 m 6.7 mil
3M™ FSK Facing Tape 3320 Silver, 99 mm x 45.7 m 6.7 mil
The 3M™ FSK Facing Tape 3320 is a high performance reinforced insulation tape made of foil/scrim/kraft paper. It is UL Classified with an adhesive that contains mold inhibiting agents to ensure regulatory compliance. Additionally, our FSK has a special acrylic adhesive which excels in hot and cold temperatures.
  • Provides instant adhesion and high performance bond to a variety of surfaces and textures
  • Kraft paper liner for easy handling and use in tight areas
  • Wide service temperature range for use in demanding conditions
  • UL 723 Classified for safety and regulatory compliance (listed for low flame spread 5 and smoke developed 10)
  • Vapor retardant tape with long-lasting acrylic adhesive provides longevity and safety
Need Help?

Questions? We can help

Contact Us



Our 3M™ FSK Facing Tape 3320 is engineered as a vapor retardant tape to seal many types of insulation such as foil-faced insulation, bare sheet metal ducts and blanket-style fiberglass duct insulation. The variety of features: foil/scrim backing with an aggressive acrylic adhesive and a poly coated kraft paper liner create ease of application and long-term reliability.

Recommended Applications

  • Sealing foil faced insulation
  • Rigid duct board and liner
  • Bare sheet metal ducts
  • Blanket style fiberglass duct insulation

Application is quick; the 3M™ FSK Facing Tape 3320 unrolls easily and comes in 48 mm, 72 mm and 99 mm widths, by 50-yard length. The silver foil backing is aesthetically compatible with foil backed insulation for inconspicuous repairs and sealing.

Temperature Compatibility
Performance in hot and cold temperatures is an essential feature of any tape’s performance – especially those used in demanding applications. This tape provides excellent thermal compatibility for use in a broad range of temperatures: -20°F (-28°C) to 175°F (79°C). Collectively, these features make this product suitable for use in a number of applications across a variety of industries, including transportation specialty vehicle, construction and appliance.


 Adhesion to Steel oz/in (N/100 mm)‎‎ 81 (89)
 Adhesive Type‎‎ Acrylic
 Applications‎‎ Tilt - Up Precast Concrete
 Backing Material‎‎ Aluminum Foil
 Backing Thickness‎‎ 6 mil
 Backing Thickness (metric)‎‎ 0.15 mm
 Brand‎‎ 3M
 Color‎‎ Silver
 Elongation‎‎ 2 Percent
 Industries‎‎ Transportation,‎ Specialty Vehicle,‎ Construction,‎ Appliance
 Length‎‎ 50 Linear Yard
 Length (Metric)‎‎ 45.72 m
 Maximum Operating Temperature (Celsius)‎‎ 79 Degree Celsius
 Maximum Operating Temperature (Fahrenheit)‎‎ 175 Degree Fahrenheit
 Meets Specifications‎‎ UL 723
 Operating Temperature Range (Celsius)‎‎ -29 to 79 Degree Celsius
 Operating Temperature Range (Fahrenheit)‎‎ -20 to 175 Degree Fahrenheit
 Product Form‎‎ Roll
 Tensile Strength‎‎ 40 lb/in
 Tensile Strength (metric)‎‎ 712 N/100mm
 Total Thickness‎‎ 6.7 mil
 Width‎‎ 3.89 Inch
 Width (Metric)‎‎ 99 mm