Aluminum foil vapor barrier is a flame retardant, vapor-barrier, and facings for the insulation industry.FSK is laminated 5 layers of structure, the outer layer is aluminum foil and kraft paper.Middle layer is the glass fiber layer double side coated with flame-retardant adhesive, it increased tensile strength of FSK, and the aluminum foil and kraft paper are firmly bonded.

Aluminum foil vapor barrier protects insulation materials as like as a jacket. FSK is most commonly used to exposed surfaces of Duct wrap, HVAC Ductwork, Exterior wall insulation, Metal building insulation, Pipeline insulation, Hot water tank insulation.

FSK: Foil-scrim-kraft, Scrim=Yarn

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

1/2 inch spacing

12.5mm spacing

Adhesive

Polyethylene

Kraft

Natural

36.6 lbs / 3000 ft2

60gsm

TYPICAL PHYSICAL PROPERTIES:

Physical properties

Test Method

Value (English)

Value (Metric)

Basis weight

Scale

19.4 lbs / 1000 ft2

95gsm

Permeance (WVTR)

ASTM E96,

Procedure A

0.1 perm

5.75 ng/N.s

Tensile Strength-MD

ASTM D828

29.5 lbs / In

130 N/25mm

Tensile Strength-XD

ASTM D828

16lbs / In

70 N/25mm

Burst Strength

ASTM D774

43.5psi

30 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