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Foil-Scrim-Kraft (FSK) is a type of laminate composed of aluminum foil, scrim, and Kraft paper. This combination provides a robust barrier that is highly effective in both thermal insulation and vapor control. The tape is coated with a high-performance acrylic adhesive that ensures strong bonding and long-term durability, even under varying environmental conditions.

By effectively sealing joints and seams, FSK tape helps maintain the integrity of the insulation’s thermal barrier. The aluminum foil layer acts as an excellent moisture barrier, reducing the risk of mold and mildew development. The combination of materials makes FSK tape very durable, capable of withstanding chemical exposure, high temperatures, and humidity. The tape is easy to apply and requires no special tools, making it convenient for quick repairs and installations.

Tape Applications:

Sealing Insulation Materials: Primarily used to join and seal seams on FSK-faced fiberglass duct board and blanket systems in HVAC systems.

Vapor Barrier Protection: Helps in creating a continuous vapor barrier to prevent moisture penetration that can reduce the effectiveness of thermal insulation.

Repairing Tears and Rips: Ideal for patching and repairing any tears or punctures in FSK-faced insulation materials.

Other applications: Can be used in various industries where thermal insulation and sealing are required.

Tape Features:

  • High-strength foil-scrim-kraft paper laminate backing resists tearing.
  • Peel-back design for easy application.
  • The pressure-sensitive adhesive allows for quick and convenient installation.
  • Moisture-, mold-, and UV-resistant design.

Tape Properties:

PROPERTIES

METRIC

ENGLISH

TEST METHOD

Backing Thickness

120Micron

4.8Mil

PSTC-133 / ASTM D 3652

Total Thickness

170 Micron

6.8Mil

PSTC-133 / ASTM D 3652

Adhesion to Steel

20N/25mm

65 Oz./In.

PSTC-101 / ASTM D 3330

Tack Rolling Ball

15cm

6.0In.

PSTC-6 / ASTM D 3121

Tensile Strength

120 N/25mm

27.3Lb/In

PSTC-131 / ASTM D 3759

Elongation

2.0%

2.0%

PSTC-131 / ASTM D 3759

Service Temperature

-30℃ to +80℃

-22℉ 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