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Foil Scrim Kraft facing, also know as FSK facingis, it a type of laminated insulation facing material used in the construction industry. It typically consists of a layer of aluminum foil, a layer of fiberglass scrim, and a layer of kraft paper. The outer layer is Aluminum foil and 80gsm Kraft paper. The middle layer is the glass fiber layer double side coated with adhesive, it increased tensile strength of FSK, and the aluminum foil and kraft paper are firmly bonded. This combination of materials provides a facing that is durable, tear-resistant, and has good vapor barrier properties.

Foil Scrim Kraft facing is commonly used as a facing material for duct wrap insulation, radiant barrier insulation, and other types of insulation applications. It helps to provide thermal insulation, moisture protection, and improve the overall performance of the insulation system. The aluminum foil layer provides a reflective surface to block radiant heat, while the kraft paper and fiberglass scrim provide strength and durability.

Foil Scrim Kraft facing is most commonly used to Ductwork insulation, HVAC systems, Exterior wall insulation, Metal building insulation, Pipeline insulation, Hot water tank insulation.

Insulation Facing Composition:

Composition

Description

Value (English)

Value (Metric)

Foil

Aluminum

0.28 mil

7 micron

Reinforcing- MD

Fiberglass

1/2 inch spacing

12.5mm spacing

Reinforcing-XD

Fiberglass

1/3 inch spacing

12.5mm spacing

Adhesive

Polyethylene

Kraft

Natural

49lbs / 3000 ft2

80gsm

Insulation Facing Properties:

Physical properties

Test Method

Value (English)

Value (Metric)

Basis weight

Scale

23.5 lbs / 1000 ft2

115gsm

Permeance (WVTR)

ASTM E96,

Procedure A

0.1 perm

5.75 ng/N.s

Tensile Strength-MD

ASTM D828

34 lbs / In

150 N/25mm

Tensile Strength-XD

ASTM D828

18.2lbs / In

80 N/25mm

Burst Strength

ASTM D774

58psi

40 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

-0.03

-0.03

 

Available Roll Width: 1.0m, 2.0m, 1.25m, 1.30m, 1.35m