Insulation Facing Description

 

The Foil Scrim Kraft Facing (FSK Facing) is a high-performance insulation facing material designed for HVAC and construction applications requiring strong vapor barrier and thermal insulation properties. Made with 18µ aluminum foil, 2-way scrim (5x5mm spacing), and a heat-activated polyethylene backing, this foil scrim kraft laminate provides excellent durability, flexibility, and cost-effectiveness for industrial and building insulation systems.

Its aluminum foil layer delivers superior radiant heat reflection and moisture resistance, while the Kraft paper and scrim reinforcement enhance tear strength and dimensional stability. The heat-activated backing allows for easy in-line lamination without additional adhesive, ensuring efficient installation and a clean finish.

Applications:

The exceptional performance of this insulation facing makes it widely applicable across commercial and residential sectors:

  • HVAC Duct Insulation: Used to wrap and insulate ductwork, enhancing energy efficiency and preventing condensation.
  • Building Insulation: Serves as a facing material for fiberglass, mineral wool, and foam insulation in walls, ceilings, and roofs.
  • Metal Building Insulation: Provides a reliable vapor barrier and reflective layer for metal structures, reducing heat gain and condensation.
  • General Construction: Suitable for waterproofing, reinforcing, and coating applications where both strength and flexibility are required.

Features:

Choosing our FSK Foil ensures long-term performance and efficiency for your insulation system:

  • Reliable Vapor Barrier Properties: The 18u aluminum foil component provides a reliable barrier against moisture transmission , delivering a good balance of vapor barrier properties essential for preventing condensation.
  • Thermal and Energy Efficiency: The aluminum foil reflects radiant heat, which significantly contributes to improved energy efficiency for the overall system.
  • Excellent Strength and Durability: The combination of the Kraft paper and 2-way scrim provides good tear resistance and dimensional stability.
  • Cost-Effective and Flexible: The material is lightweight and cost-effective , while the thinner foil and 2-way scrim construction may offer greater flexibility for easier handling during installation.
  • Versatile Performance: This material combination provides a powerful balance of performance and cost-effectiveness across many applications.

Insulation Facing Technical Data

Composition:

Composition

Description

Value (English)

Value (Metric)

Foil

Aluminum

0.72 mil

18 micron

Reinforcing- MD

Fiberglass

1/5 inch spacing

5mm spacing

Reinforcing-XD

Fiberglass

1/5 inch spacing

5mm spacing

Heat-Activated Adhesive

Polyethylene

1 mil

25 micron

Properties:

Physical properties

Test Method

Value (English)

Value (Metric)

Basis weight

Scale

17 lbs / 1000 ft2

83 gsm

Permeance (WVTR)

ASTM E96,

Procedure A

0.02 perm

1.15 ng/N.s

Tensile Strength-MD

ASTM D828

17 lbs / In

75 N/25mm

Tensile Strength-XD

ASTM D828

17 lbs / In

75N/25mm

Burst Strength

ASTM D774

50.8psi

35 N/cm2

Low temperature

Resistance

ASTM D1790

4 hrs @

-40℉ (-40℃)

Remains Flexible

No Delamination

Remains Flexible

No Delamination

High temperature

Resistance

ASTM D1790

4 hrs @

+240℉ (+116℃)

Remains Flexible

No Delamination

Remains Flexible

No Delamination

Emissivity

ASTM E408

-0.05

-0.05

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