Aluminum foil vapor barrier is laminated 5 layers of structure, the outer layer is aluminum foil and kraft paper.All 5 layers laminated together using a flame-retardant adhesive. 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 is a flame retardant, vapor-barrier, and insulation facing for the insulation industry. Aluminum foil vapor barrier protects insulation materials as like as a jacket. It is most commonly used to exposed surfaces of Duct wrap, HVAC Ductwork, 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

1/2 inch spacing

12.5mm spacing

Adhesive

Polyethylene

Kraft

Natural

36.6 lbs / 3000 ft2

60gsm

 

INSULATION FACING 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