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FSK foil tape, also known as FSK facing tape or FSK insulation tape, The acronym FSK stands for Foil/Scrim/Kraft. The foil provides a barrier against heat and moisture, the scrim adds strength and tear resistance, and the kraft backing provides a smooth surface for the adhesive to adhere to.

FSK foil tape is primarily used for sealing and joining FSK-faced insulation materials. It is commonly used to seal the seams and joints of ductwork, pipes, and other HVAC components to prevent air leakage and ensure proper insulation performance.

The adhesive used on FSK foil tape is typically a high-performance acrylic adhesive that provides strong adhesion to various surfaces, including metal, insulation materials, and other commonly used building materials.

Aluminum Foil Tape Features:

  • Excellent level of adhesion and performance at higher temperatures.
  • High-strength foil-scrim laminate backing resists tearing.
  • High quality adhesive capable of bonding on a wide variety of substrates in cold climates.
  • High-tack synthetic rubber adhesive forms an instant bond.
  • Vapor barrier, reflecting heat, reflecting light, and UV-resistant design.

Aluminum Foil Tape Applications:

  • Applied for the coating and insulation in the air conditioning and ventilation sector.
  • General patching, sealing and fastening applications.
  • Union of fiberglass sheets or duct joints.
  • Insulation sealing of cold rooms.
  • Recommend use as sheet metal duct water vapor seal.
  • Rigid insulation of closing air ducts.

Tpae Properties:





Backing Thickness



PSTC-133 / ASTM D 3652

Total Thickness

90 Micron


PSTC-133 / ASTM D 3652

Adhesion to Steel


52.5 Oz./In.

PSTC-101 / ASTM D 3330

Tack Rolling Ball



PSTC-6 / ASTM D 3121

Tensile Strength

120 N/25mm


PSTC-131 / ASTM D 3759




PSTC-131 / ASTM D 3759

Service Temperature

-20℃ to +80℃

-4℉ to +176℉


Applying Temperature

+10℃ to +40℃

+50℉ to +105℉


Tape Roll Size:

Finish Roll:

50mm x 50m 2” x 55yds
75mm x 50m 3” x 55yds

Log Roll:1200mm x 50m

Jumbo Roll:1200mm x 900m