FSK vapor barrier is a premium grade Foil-Scrim-Kraft facing,mainly used as a facing & vapor barrier for glasswool / rockwool / foam duct wrap insulation.
FSK Vapor Barrier FSK-718B is a premium grade Foil-Scrim-Kraft facing with 2-way scrim and 80gsm Kraft, mainly used as a facing & vapor barrier for glasswool / rockwool / foam duct wrap insulation, also a good choice for radiant barrier applications because of its low emissivity.
FSK as a laminated insulation facing protects insulation materials, manufactured using lightweight aluminum foil, fiber glass reinforcing yarn and natural kraft paper laminated together with a flame-retardant adhesive. FSK Vapor Barrier is laminated 5 layers of structure, the outer layer is Aluminum foil and 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.
FSK Vapor Barrier FSK-718B 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
|
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 |
|
Physical properties |
Test Method |
Value (English) |
Value (Metric) |
|
Basis weight |
Scale |
23.5 lbs / 1000 ft2 |
20.1595%gsm |
|
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
